Question

Evaluate the exprssion when a= -5
a2+6a-9

Answer 1

Hi there!

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I believe your answer is:

-14

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Here’s why:

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`\text{Assuming that the expression is: } a^2 + 6a -9`

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`\boxed{\text{Evaluating...}}\\\\a^2+6a - 9\\-----------\\(-5)^2 + 6(-5) - 9\\\\\rightarrow (-5)^2 = 25\\\\\rightarrow 6 * -5 = -30\\\\25 - 30 - 9\\\\\rightarrow \boxed{-14}`

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Hope this helps you. I apologize if it’s incorrect.

Answer 2

-49

Explanation:

Substitute the a for -5

2(-5)+6(-5)-9

Multiply:

-10+-30-9

Add:

-40-9

Subtract (Add negatives):

-49