Key to "a2+b2isequalto?"

Cabreleax3

Answered question

2022-12-20

a^{2} {+b}^{2} is equal to ?

gamspoupshua

Beginner2022-12-21Added 6 answers

({a+b)}^{2} {=a}^{2} {+b}^{2} +2ab

a^{2} {+b}^{2} {=(a+b)}^{2} -2ab

({a-b)}^{2} {=a}^{2} {+b}^{2} -2ab

a^{2} {+b}^{2} {=(a-b)}^{2} +2ab

a^{2} {+b}^{2} {+a}^{2} {+b}^{2} {=(a+b)}^{2} {-2ab+(a-b)}^{2} +2ab 2 a^{2} {+2b}^{2} {=(a+b)}^{2} {+(a-b)}^{2} {2(a}^{2} {+b}^{2} {)=(a+b)}^{2} {+(a-b)}^{2} {(a}^{2} {+b}^{2})= \frac{{(a+b)}^{2} {+(a-b)}^{2}}{2}

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