Chapter 2

Elementary Algebra · 512 exercises

Problem 41

Use the product rule and quotient rule of exponents to simplify the following problems. Assume that all bases are nonzero and that all exponents are whole numbers. $$ 4 y^{4} \cdot 5 y^{6} $$

4 step solution

Problem 41

Use the power rules for exponents to simplify the following problems. Assume that all bases are nonzero and that all variable exponents are natural numbers. $$ \left(9 x y^{3}\right)^{0} $$

3 step solution

Problem 41

For the following problems, expand the quantities so that no exponents appear. $$ 10 a^{3} b^{2}(3 c)^{2} $$

2 step solution

Problem 41

Use the commutative property of addition and multiplication to write expressions for an equal number for the following problems. You need not perform any calculations. $$\square \cdot[\mathrm{U}+25 \mathrm{CB}]$$

4 step solution

Problem 41

For the following problems, what numbers can replace \(x\) so that the following statements are true? \(-1 \leq x \leq 5 \quad x\) an int eger

3 step solution

Problem 41

For the following problems, rewrite each phrase using algebraic notation. Ten minus three

4 step solution

Problem 42

Use the product rule and quotient rule of exponents to simplify the following problems. Assume that all bases are nonzero and that all exponents are whole numbers. $$ 2 a^{3} b^{2} \cdot 3 a b $$

3 step solution

Problem 42

Use the power rules for exponents to simplify the following problems. Assume that all bases are nonzero and that all variable exponents are natural numbers. $$ \left(\frac{1}{2} f^{2} r^{6} s^{5}\right)^{4} $$

3 step solution

Problem 42

For the following problems, expand the quantities so that no exponents appear. $$ (a+10)^{2}\left(a^{2}+10\right)^{2} $$

5 step solution

Problem 42

Use the commutative property of addition and multiplication to write expressions for an equal number for the following problems. You need not perform any calculations.

4 step solution

Problem 42

For the following problems, what numbers can replace \(x\) so that the following statements are true? \(-7

3 step solution

Problem 42

For the following problems, rewrite each phrase using algebraic notation. \(x\) plus sixteen

2 step solution

Problem 43

For the following problems, write the appropriate relation symbol \((=,<,>)\). $$ -8 \quad-5 $$

4 step solution

Problem 43

Use the product rule and quotient rule of exponents to simplify the following problems. Assume that all bases are nonzero and that all exponents are whole numbers. $$ 12 x y^{3} z^{2} \cdot 4 x^{2} y^{2} z \cdot 3 x $$

4 step solution

Problem 43

Use the power rules for exponents to simplify the following problems. Assume that all bases are nonzero and that all variable exponents are natural numbers. $$ \left(\frac{1}{8} c^{10} d^{8} e^{4} f^{9}\right)^{2} $$

4 step solution

Problem 43

For the following problems, expand the quantities so that no exponents appear. $$ \left(x^{2}-y^{2}\right)\left(x^{2}+y^{2}\right) $$

4 step solution

Problem 43

Simplify using the commutative property of multiplication for the following problems. You need not use the distributive property. $$9 x 2 y$$

4 step solution

Problem 43

For the following problems, what numbers can replace \(x\) so that the following statements are true? \(-3 \leq x \leq 2, \quad x\) a natural number

3 step solution

Problem 43

For the following problems, rewrite each phrase using algebraic notation. 51 divided by \(a\)

2 step solution

Problem 44

Use the product rule and quotient rule of exponents to simplify the following problems. Assume that all bases are nonzero and that all exponents are whole numbers. $$ (3 a b)\left(2 a^{2} b\right) $$

3 step solution

Problem 44

Use the power rules for exponents to simplify the following problems. Assume that all bases are nonzero and that all variable exponents are natural numbers. $$ \left(\frac{3}{5} a^{3} b^{5} c^{10}\right)^{3} $$

5 step solution

Problem 44

For the following problems, select a number (or numbers) to show that \((5 x)^{2}\) is not generally equal to \(5 x^{2}\).

4 step solution

Problem 44

For the following problems, rewrite each phrase using algebraic notation. 81 times \(x\)

2 step solution

Problem 45

Is there a smallest two digit integer? If so, what is it?

2 step solution

Problem 45

Use the product rule and quotient rule of exponents to simplify the following problems. Assume that all bases are nonzero and that all exponents are whole numbers. $$ \left(4 x^{2}\right)\left(8 x y^{3}\right) $$

3 step solution

Problem 45

Use the power rules for exponents to simplify the following problems. Assume that all bases are nonzero and that all variable exponents are natural numbers. $$ (x y)^{4}\left(x^{2} y^{4}\right) $$

4 step solution

Problem 45

For the following problems, select a number (or numbers) to show that \((7 x)^{2}\) is not generally equal to \(7 x^{2}\).

6 step solution

Problem 45

For the following problems, what numbers can replace \(x\) so that the following statements are true? \(-5 \leq x<5, \quad x\) a whole number

3 step solution

Problem 45

For the following problems, rewrite each phrase using algebraic notation. 3 times \((x+y)\)

4 step solution

Problem 46

Is there a smallest two digit real number? If so, what is it?

7 step solution

Problem 46

Use the product rule and quotient rule of exponents to simplify the following problems. Assume that all bases are nonzero and that all exponents are whole numbers. $$ (2 x y)(3 y)\left(4 x^{2} y^{5}\right) $$

3 step solution

Problem 46

Use the power rules for exponents to simplify the following problems. Assume that all bases are nonzero and that all variable exponents are natural numbers. $$ \left(2 a^{2}\right)^{4}\left(3 a^{5}\right)^{2} $$

4 step solution

Problem 46

For the following problems, select a number (or numbers) to show that \((a+b)^{2}\) is not generally equal to \(a^{2}+b^{2}\).

6 step solution

Problem 46

Simplify using the commutative property of multiplication for the following problems. You need not use the distributive property. $$5 x 10 y 5 z$$

5 step solution

Problem 46

The temperature in the desert today was ninety-five degrees. Represent this temperature by a rational number.

2 step solution

Problem 46

For the following problems, rewrite each phrase using algebraic notation. \((x+b)\) times \((x+7)\)

4 step solution

Problem 47

For the following problems, what integers can replace \(x\) so that the statements are true? $$ 4 \leq x \leq 7 $$

3 step solution

Problem 47

Use the product rule and quotient rule of exponents to simplify the following problems. Assume that all bases are nonzero and that all exponents are whole numbers. $$ \left(\frac{1}{4} a^{2} b^{4}\right) \quad\left(\frac{1}{2} b^{4}\right) $$

3 step solution

Problem 47

Use the power rules for exponents to simplify the following problems. Assume that all bases are nonzero and that all variable exponents are natural numbers. $$ \left(a^{2} b^{3}\right)^{3}\left(a^{3} b^{3}\right)^{4} $$

4 step solution

Problem 47

For the following problems, select a number (or numbers) to show that For what real number is \((6 a)^{2}\) equal to \(6 a^{2} ?\)

3 step solution

Problem 47

The temperature today in Colorado Springs was eight degrees below zero. Represent this temperat ure with a real number.

2 step solution

Problem 47

For the following problems, rewrite each phrase using algebraic notation. 3 times \(x\) times \(y\)

2 step solution

Problem 48

For the following problems, what integers can replace \(x\) so that the statements are true? $$ -3 \leq x<1 $$

3 step solution

Problem 48

Use the product rule and quotient rule of exponents to simplify the following problems. Assume that all bases are nonzero and that all exponents are whole numbers. $$ \left(\frac{3}{8}\right)\left(\frac{16}{21} x^{2} y^{3}\right)\left(x^{3} y^{2}\right) $$

4 step solution

Problem 48

Use the power rules for exponents to simplify the following problems. Assume that all bases are nonzero and that all variable exponents are natural numbers. $$ \left(h^{3} k^{5}\right)^{2}\left(h^{2} k^{4}\right)^{3} $$

2 step solution

Problem 48

Is every integer a rational number?

4 step solution

Problem 48

For the following problems, rewrite each phrase using algebraic notation. \(x\) divided by \((7\) times \(b)\)

4 step solution

Problem 49

For the following problems, what integers can replace \(x\) so that the statements are true? $$ -3

2 step solution

Problem 49

Use the product rule and quotient rule of exponents to simplify the following problems. Assume that all bases are nonzero and that all exponents are whole numbers. $$ \frac{8^{5}}{8^{3}} $$

4 step solution

Problem 49

Use the power rules for exponents to simplify the following problems. Assume that all bases are nonzero and that all variable exponents are natural numbers. $$ \left(x^{4} y^{3} z\right)^{4}\left(x^{5} y z^{2}\right)^{2} $$

4 step solution

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