Question

How do you name the binomial you can multiply by (x+9) to get the product `x^2+5x-36`?

Answer 1

(x - 4)

Explanation:

First, find the number that, multiplied by 9, makes -36.
It should be (- 4).
Next develop the product:
`(x + 9)(x - 4) = x^2 - 4x + 9x - 36 = x^2 + 5x - 36`. OK