Question

Solve the equation using factoring x2 + 7x + 12 = 0
A. {2, 6}
B. {-2, -6}
C. {3, 4}
D. {-3, -4}

Answer 1

x^2+7x+12 = 0
x^2+3x+4x+12=0
x(x+3)+4(x+3)=0
(x+3)(x+4)=0
x = -3,-4

Answer 2

So D.

Answer 3

correct :D