Problem 6
Question
Evaluate each algebraic expression for the given value or values of the variable(s). $$x^{2}+5 x, \text { for } x=6$$
Step-by-Step Solution
Verified Answer
The value of the expression when x = 6 is 66.
1Step 1: Substitution of the variable x with the given value
Substitute x with the given value, which is 6, in the given expression \(x^{2}+5x\). So, the expression becomes \((6)^{2}+5(6)\).
2Step 2: Simplify the terms in the expression
First, calculate the square of 6 and the product of 5 and 6 in the expression. This leads to the expressions \(36 + 30\). Next, add these two terms together.
3Step 3: Final calculation
Add the two numbers 36 and 30 together to get the final result. This results in a value of 66.
Other exercises in this chapter
Problem 6
Evaluate each expression indicate that the root is not a real number. $$ \sqrt{-25} $$
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Evaluate each exponential expression. $$ -2^{4} $$
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simplify each rational expression. Find all numbers that must be excluded from the domain of the simplified rational expression. $$ \frac{3 x-9}{x^{2}-6 x+9} $$
View solution Problem 7
In Exercises 5–8, find the degree of the polynomial. $$ x^{2}-4 x^{3}+9 x-12 x^{4}+63 $$
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