(a^2 - 2ab b^2)/a + b?

Question

please help me simplify

Answer 1

Are you missing a plus sign and parentheses around a+b? If so, then
(a^2 -2ab + b^2) = (a-b)(a-b) = (a-b)^2
You cannot cancel anything, so
(a^2 -2ab + b^2)/(a+b) does not simplify.
You may wish to write it as (a-b)^2 /(a+b)

If you are not missing a plus sign or parentheses, then
a^2 - 2ab b^2 = a^2 - 2ab^3
You can factor out an a.
= a(a-b^3) This does not factor, so you cannot simplify.
Divide this by a and you get a - b^3
Now add b
Answer: a - 2b^3 + b

Answer 2

You're missing the sign between 2ab and b^2. Double check them.

Answer 3

(a^2 - 2ab + b^2)/(a + b)
factor the numerator
(a-b)(a+b)/(a+b)
a-b

ANSWER
a - b