Question

Which equation yields the solutions x=−2 and x=5?

Answer 1

Explanation:

Well first what is the equation?

Answer 2

x² - 3x - 10 = 0

Explanation:

Given there are 2 solutions then the equation is a quadratic.

Since the solutions are x = - 2 and x = 5 then

the factors are (x + 2) and (x - 5) and

f(x) = (x + 2)(x - 5) ← expand factors

= x² - 3x - 10, hence the equation is

x² - 3x - 10 = 0