Question

1) Solve the quadratic equation by factor method : x²+ 8x +15 =0​

Answer 1

Answer:

x = -3, -5

Step-by-step explanation:

x²+8x+15 = 0

x²+3x+5x+15 = 0

x(x+3) + 5(x+3) = 0

(x+3) (x+5) = 0

Either, x+3 = 0 then x = -3

Or, x+5 = 0 then x = -5