Answer:
<h2>c. x = -4 or x = 9</h2>
Step-by-step explanation:

Domain:

solution:

use <em>(a - b)(a + b) = a² - b²</em>

multiply both sides by (x - 3) ≠ 0

cancel (x - 3)

subtract
from both sides

cross multiply

use FOIL

subtract 4x from both sides

combine like terms

change the signs

The product is 0 if one of the factors is 0. Therefore:

<em>add 9 to both sides</em>

<em>subtract 4 from both sides</em>

I think the question is
Find the value of c so that (x-5) is a factor of the polynomial

The other factor is going to be some quadratic. We can say a few things about its coefficients but let's start by saying in general it's



Equating respective coefficients,




so we get



Answer: -37
Check:
