Simplify the following using a suitable identity.
a. (x - 2y)2 + (x + 2y)2
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Step-by-step explanation:
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Step-by-step explanation:
(x-2y)2+(x+2y)2
multiply above brackets
2x-4y+2x+4y=0 ........1
-4y+4y... cancel
2x+2x=0
4x=0
X=1/4
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