Mathematics
Simplify the following:
(a+b)2 + (a-b)2
Expansions
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Answer
(a+b)2 + (a-b)2 = [(a)2 + 2(a)(b) + (b)2] + [(a)2 - 2(a)(b) + (b)2]
= a2 + b2 + a2 + b2 + 2ab - 2ab
= 2a2 + 2b2
= 2(a2 + b2)
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Simplify the following:
(a+b)2 + (a-b)2
19 Likes
(a+b)2 + (a-b)2 = [(a)2 + 2(a)(b) + (b)2] + [(a)2 - 2(a)(b) + (b)2]
= a2 + b2 + a2 + b2 + 2ab - 2ab
= 2a2 + 2b2
= 2(a2 + b2)
Answered By
13 Likes