Question

What is the width and length of an area that = x^2+8x-9

Answer 1

(x-1) (x+9)

Explanation:

Consider the form x2 + bx+c. Find a pair of integers whose product is c and whose sum is b In this case, whose product is − 9 and whose sum is 8.

−1,9 Hope this helps

Answer 2

Then the width would be (x+9) and the length would be (x-1)

Explanation:

If you factor the expression you get

`x^2 - 8x - 9 = (x+9)(x-1)`

Then the width would be (x+9) and the length would be (x-1)