Question

(x-a)(x+b)=?
Give answer of (?)

Answer 1

Step-by-step explanation:

(x-a)(x+b)

x^2 + bx - ax -ab

x^2 + x(b-a) -ab

Answer 2

Answer:

x^2 - ax + bx - ab

Step-by-step explanation:

1. x ( x + b ) -a( x + b )
2. x^2 + bx -ax -ab