Solve:
(a $+$ b)2 $+$ (a $-$ b)2
Given: (a $+$ b)2 $+$ (a $-$ b)2
To find: Here we have to find the value of the given expression (a $+$ b)2 $+$ (a $-$ b)2.
Solution:
(a $+$ b)2 $+$ (a $-$ b)2
= a2 $+$ b2 $+$ 2ab $+$ a2 $+$ b2 $-$ 2ab
= 2a2 $+$ 2b2
= 2(a2 $+$ b2)
So, value of given expression (a $+$ b)2 $+$ (a $-$ b)2 is 2(a2 $+$ b2).
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