Question

The formula (x+a)(x+b) = x^2+(a+b)x is valid.
True or False?

I say false, but I'm not sure.... Help??

Answer 1

false

Answer 2

Thanks!

Answer 3

Your Welcome (:

Answer 4

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

Answer 5

this works if a and b = 0:)

Answer 6

Thanks @zzr0ck3r Ill try to remember that :D