Question

find the value of (x+y)² + (x-y)²

plz answer fast...​

Answer 1

$2( {x}^{2} + {y}^{2} )$

Step-by-step explanation:

$({x + y})^{2} = {x}^{2} + {y}^{2} + 2xy$

$(x - y) ^{2} = {x }^{2} + {y}^{2} - 2xy$

adding these two we get the answer