Question

find the value of
${(x + y)}^{2} + {(x - y)}^{2}$
​

Answer 1

x^2+y^2+2xy-2xy+x^2+y^2

=2(x^2+y^2)

Answer 2

Heya❤

Here is your answer::

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

Hope it helps you
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