(x + y)^2 + (x - y)^2 is equals to
2xy
3xy
4xy
none of these
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Answered by
0
Step-by-step explanation:
= none of these
(x+y)2 = x2 + y2 +2xy
(x-y)2 = x2 + y2 -2xy
By adding it, we get :
2x2 + 2y2
= 2(x2 + y2)
Hope this helps you. Stay safe.
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Answered by
0
Answer:
d is the correct answer (solved in the uploaded photo)
Step-by-step explanation:
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