Question

Simplify.
(i) (x + y)2 – (x - y)2
(ii) (3x + 4y)2 + (4x + 3y)?
(iii) (3x - y)2 + 3x (2x + y)2
(iv) (2x - 5y) (2x + 5y) + (x + 4y)?
(v) (y - 7) + (y - 8x) (y + 8x)​

Answer 1

Answer:

I) (x+y)2 = x2+2xy+y2

(x-y)2 = x2-2xy+y2

= 4xy

II).

Answer 2

Answer:

not a correct answer you Maddy girl