Question

value (x+y) ²+(x-y) ² is​

Answer 1

Here's the required answer to your question

Answer 2

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

=> 2[x²+y²]