SOLUTION: i need help to evaluate my algebra problem the problem is x2-7x-8 for x=

SOLUTION: i need help to evaluate my algebra problem the problem is x2-7x-8 for x= - 3

Question 296792: i need help to evaluate my algebra problem the problem is x2-7x-8 for x= - 3
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
There are two ways to do this:

1)

Start with the given expression.

Plug in

Square -3 to get

Multiply

Combine like terms.

So when

Or....

2)

Start with the given expression.

Factor the expression.

Plug in

Combine like terms.

Multiply

So again when

You'll most likely use the first method when it comes to evaluation, but it helps to know that there are multiple ways to do it.
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