Chapter 6
Elementary Algebra · 386 exercises
Problem 1
For exercises 1-20, use a pattern to factor. Check. Identify any prime polynomials. $$ x^{2}+8 x+16 $$
5 step solution
Problem 1
For exercises 1-22, use the guess and check method to factor. Identify any prime polynomials. $$ x^{2}+16 x+63 $$
8 step solution
Problem 1
For exercises 1-10, find the greatest common factor of the terms. $$ 48 ; 54 $$
4 step solution
Problem 2
Solve. $$ y(y-21)=0 $$
4 step solution
Problem 2
Factor completely. Identify any prime polynomials. $$ 2 x^{2}-18 $$
4 step solution
Problem 2
Use the guess and check method to factor. Identify any prime polynomials. $$ y^{2}+15 y+54 $$
6 step solution
Problem 2
For exercises 1-10, find the greatest common factor of the terms. $$ 48 ; 56 $$
4 step solution
Problem 3
Solve. $$ (c+3) c=0 $$
4 step solution
Problem 3
Factor completely. Identify any prime polynomials. $$ x^{3}+6 x^{2}+5 x $$
5 step solution
Problem 3
Use a pattern to factor. Check. Identify any prime polynomials. $$ y^{2}-12 y+36 $$
4 step solution
Problem 3
For exercises 1-10, find the greatest common factor of the terms. $$ 48 x^{2} y^{3} ; 60 x y^{2} $$
5 step solution
Problem 4
Solve. $$ (k+8) k=0 $$
4 step solution
Problem 4
Factor completely. Identify any prime polynomials. $$ x^{3}+5 x^{2}+4 x $$
4 step solution
Problem 4
Use a pattern to factor. Check. Identify any prime polynomials. $$ a^{2}-10 a+25 $$
7 step solution
Problem 4
Use the guess and check method to factor. Identify any prime polynomials. $$ w^{2}-11 w+24 $$
5 step solution
Problem 4
For exercises 1-10, find the greatest common factor of the terms. $$ 48 x^{2} y^{3} ; 80 x^{2} y $$
6 step solution
Problem 5
Factor completely. Identify any prime polynomials. $$ 10 p x+5 x y+10 p y+5 y^{2} $$
6 step solution
Problem 5
Use a pattern to factor. Check. Identify any prime polynomials. $$ u^{2}+20 u+100 $$
6 step solution
Problem 5
Use the guess and check method to factor. Identify any prime polynomials. $$ h^{2}+11 h+42 $$
6 step solution
Problem 5
For exercises 1-10, find the greatest common factor of the terms. $$ 48 x^{5} y^{3} ; 60 x^{2} y $$
5 step solution
Problem 6
Solve. $$ 0=d(d+9) $$
4 step solution
Problem 6
Factor completely. Identify any prime polynomials. $$ 6 a c+3 a b+6 b c+3 b^{2} $$
4 step solution
Problem 6
Use a pattern to factor. Check. Identify any prime polynomials. $$ v^{2}+18 v+81 $$
5 step solution
Problem 6
Use the guess and check method to factor. Identify any prime polynomials. $$ k^{2}+15 k+40 $$
4 step solution
Problem 6
For exercises 1-10, find the greatest common factor of the terms. $$ 48 x^{7} y^{2} ; 80 x y^{4} $$
5 step solution
Problem 7
Solve. $$ (p+4)(p-7)=0 $$
4 step solution
Problem 7
Factor completely. Identify any prime polynomials. $$ 8 n^{2}+8 p^{2} $$
4 step solution
Problem 7
Use a pattern to factor. Check. Identify any prime polynomials. $$ y^{2}-6 y+9 $$
8 step solution
Problem 7
Use the guess and check method to factor. Identify any prime polynomials. $$ z^{2}-7 z-18 $$
5 step solution
Problem 8
Solve. $$ (h+2)(h-10)=0 $$
4 step solution
Problem 8
Factor completely. Identify any prime polynomials. $$ 7 c^{2}+7 d^{2} $$
4 step solution
Problem 8
Use a pattern to factor. Check. Identify any prime polynomials. $$ c^{2}-14 c+49 $$
6 step solution
Problem 8
Use the guess and check method to factor. Identify any prime polynomials. $$ a^{2}-4 a-21 $$
6 step solution
Problem 9
Factor completely. Identify any prime polynomials. $$ 4 x^{2}+24 x+36 $$
4 step solution
Problem 9
Use a pattern to factor. Check. Identify any prime polynomials. $$ k^{2}+16 k+64 $$
6 step solution
Problem 9
Use the guess and check method to factor. Identify any prime polynomials. $$ z^{2}+7 z-18 $$
6 step solution
Problem 10
Solve. $$ (2 m+3)(m+8)=0 $$
4 step solution
Problem 10
Factor completely. Identify any prime polynomials. $$ 5 y^{2}+30 y+45 $$
4 step solution
Problem 10
Use a pattern to factor. Check. Identify any prime polynomials. $$ y^{2}+18 y+81 $$
7 step solution
Problem 10
Use the guess and check method to factor. Identify any prime polynomials. $$ a^{2}+4 a-21 $$
5 step solution
Problem 10
For exercises 1-10, find the greatest common factor of the terms. $$ 34 a^{4} b^{7} ; 15 a d^{3} $$
5 step solution
Problem 11
Factor completely. Identify any prime polynomials. $$ 90 x z+72 x+10 y z+8 y $$
4 step solution
Problem 11
Use a pattern to factor. Check. Identify any prime polynomials. $$ 9 k^{2}+48 k+64 $$
5 step solution
Problem 11
Use the guess and check method to factor. Identify any prime polynomials. $$ x^{2}-14 x+49 $$
7 step solution
Problem 12
Solve. $$ (3 n+7)(4 n-1)=0 $$
5 step solution
Problem 12
Factor completely. Identify any prime polynomials. $$ 42 c f+70 c+6 d f+10 d $$
4 step solution
Problem 12
Use a pattern to factor. Check. Identify any prime polynomials. $$ 4 y^{2}+36 y+81 $$
6 step solution
Problem 12
Use the guess and check method to factor. Identify any prime polynomials. $$ y^{2}-16 y+64 $$
5 step solution
Problem 12
(a) factor out the greatest common factor. Identify any prime polynomials. (b) check. $$ 18 c+24 d $$
5 step solution
Problem 13
Solve. $$ x(x-3)(x-7)=0 $$
3 step solution