Question

I need help with my grade 10 math work

a) x2+ 7x − 8
Product =
Sum =
Numbers =

Answer 1

(x-1) and (x+8).

Explanation:

The given expression is :

`x^2+7x-8`

We need to find the factors of this expression.

Product of two numbers = 8 and -1 = -8

Sum of two numbers = 8 and -1 = 7

So,

`x^2+7x-8=x^2+8x-x-8\\\\=x(x+8)-1(x+8)\\\\=(x-1)(x+8)`

So, the factors of this expression are (x-1) and (x+8).