Question

Which expression has an equivalent value to x2 + 9x + 8 for all values of x?

Answer 1

Answer: (x + 1) (x+8) is the expression [a].

Step-by-step explanation:

Given :  x² + 9x + 8 .

To find :Which expression has an equivalent value to x2 + 9x + 8 for all values of x.

Solution : We have given that

                               x² + 9x + 8 =0

On factoring   :       x² + 8x +1x + 8 =0.

Taking common terms

            x( x+8 ) +1( x+ 8) =0.

(x + 1) (x+8) =0

Therefore , (x + 1) (x+8) is the expression [a].

Answer 2

Long way is to multiply them out
short way is to factor given equation

x^2+9x+8
what 2 numbers add to 9 and multiply to 8?
1 and 8
(x+8)(x+1)


A