Question

Find the zeros (roots) of the quadratic equation. x2+8x−20=0
A. - 5, - 15
B. - 20, 10
C. - 10, 2

Answer 1

split as x2+10x-2x-20=0
x(x+10)-2(x+10)=0
(x-2)(x+10)=0

Answer 2

huh

Answer 3

x=2 and -10