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CBSE Class 10 Answered

Hello Sir, Iam getting confused with these two identities: 1. (a+b)^2=? 2. a^2+b^2=? expand these twon identities and explain me with an example. Thank You.
Asked by seeni2005 | 27 Jun, 2019, 09:03: PM
answered-by-expert Expert Answer
Both are related to each other
 
(a+b)2 =(a+b)(a+b) = a2 + ab + ab + b2 = a2 + 2ab + b2
a2 + b2 = (a+b)2 - 2ab
Answered by Arun | 28 Jun, 2019, 01:56: PM

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