Question

(5a + 2)²- (5a-2)² expand the following​

Answer 1

Answer:

Hola

Step-by-step explanation:

Here is ut best answer dear ..... ......

Answer 2

Answer:

using identity (x+y)^2=x^2+y^2+2xy

(x-y)^2=x^2+y^2-2xy

25a^2 +4 +20a - ( 25a^2 +4 -20a). (sign changes due to bracket)

25a^2 +4 +20a - 25a^2 -4 +20a

= 40a

Hope it helps....