Question

Solve : x2 - 2x - 15 = 0.​

Answer 1

Answer:

Step-by-step explanation:

x2-2x-15=0

x2-5x+3x-15=0

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

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

x=5,-3

Hope it helps you

Answer 2

Answer:

x2 - 2x - 15 = 0

x2 + 3x - 5x - 15 = 0

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

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

x=5 ,-3

I hope it help for you