Question

(3x+2y)^2 +(3x-2y)^2

Answer 1

$hope \: it \: is \: useful$

Answer 2

The formula of (a+b)²+(a-b)²=2a²+2b²=2(a²+b²)

Here,

a =3X

b=2Y

2(3X²+2Y²)

=2(9X²+4Y²)

=18X²+8Y²