Question

Solve the equation by factoring.

x2 – 3x – 28 = 0
A {-1, 2}
B-2, -1}
C{-4, 7}
D {-1}

Answer 1

C {-4, 7}

Explanation:

x2 – 3x – 28 = 0

(x+4)(x-7)=0

(x-7)=0 or (x+4)=0

x=7 or x=-4