Question

simplify:(4x+5y)2+(4x-5y)2​

Answer 1

Answer:

16x

Step-by-step explanation:

(4x+5y)2+(4x-5y)2

(8x+10y)+(8x-10y)

8x+10y+8x-10y

Both +10y and -10y are cancelled

so, 8x+8x = 16x.

Hope it helps you.