Question

Expand the following:
1. (x - y)^2 =
2. (a - b)^3 =
3. (a + b)^3 =
4. x^3 + y^3 =
5. (x + y) (x - y) =

Answer 1

Step-by-step explanation:

1) x^2+y^2-2xy

2) a^3-b^3-3a^2b+3ab^2

3) a^3+b^3+3a^2b+3ab^2

5) x^2-y^2