Question

CAN SOMEONE PLEASE SOLVE THIS IN AS MUCH DETAIL AS POSSIBLE?

x^2 + x - 12 = 0

Answer 1

x^2+4x-3x-12=0 (splitting x)
x(x+4)-3(x+4)=0 taking common x and -3 respectively
(x-3)(x+4)=0 taking (x-4) common

a*b=0
then a=0 or b=0 or both

so we have
x+4=0 or x-3=0
therefore x=-4 or x=3

Answer 2

in step 3 make it x+4 common.. typo

Answer 3

thank you! :D