Question

Solve by factorising x2+8x+15=0

Answer 1

(X+2) (X+6)=0

Explanation:

X2+8x+12=0

or, X2+(2+6)X+12=0

or, X2+2x+6x+12=0

or, X(X+2) +6(X+2) =0

or, (X+2)(X+6)=0

Answer 2

Hi! The correct answer is x= -3 ,-5!

Explanation:

~Factor and set each factor equal to 0~