Question

Find the value of (x + y)2 + (x – y)2.

Answer 1

Answer:

x + y)2 + (x – y)2.

(2x+ 2x) + (- 2 y + 2y )

=4x .....ans

Answer 2

( x + y ) ² + ( x - y ) ²

x ² + 2xy + y² + ( x - y ) ²

x ² + 2xy + y² + x² - 2xy + y²

2x² + 2xy + y² - 2xy + y²

2xy² + y² + y²

2x² + 2y²