Question

what is the answer of this identity (x+a) (x+b) =

Answer 1

x2 - x(a + b) + ab
is the formula for (x+a) (x+b)

Answer 2

(x+a)(x+b)
= x(x+b)+a(x+b)
=x^2 +xb+ax+ab
=x^2+(a+b)x+ab

HOPE THIS HELPS! Thanks!