Question

1. a) Expand (x + y)2
b) Expand (x - y)2
c) Find (x + y)2 -- (x - y)2​

Answer 1

Answer:

a) x^2+2xy+b^2

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

c) (X+y)+(x-y) (X+y)-(x-y)

hope it helps u

Answer 2

Answer:

1.x²+y²+2xy

2.x²+y²-2xy

3.(x+y)+(x-y)(x+y)-(x-y).

hope it will help you.