Question

What are the roots of the polynomial equation?

x² + 7x + 12 = 0

Answer 1

x = -3

x = -4

your welcome

Answer 2

Factored, the equation becomes ...

... (x +4)(x +3) = 0

The roots are the values of x that make one or the other of these factors be zero, so the product is zero.

... x = -4 . . . or . . . x = -3