Question

what are the identies in algebra

Answer 1

(a+b)°=1
(a+b)²=a²+b²+2ab
(a-b)²=a²-2ab+b²
(a+b)³=a³+3a²b+3ab²+b³
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Answer 2

(a+ b)^2 =a sq. + b sq. + 2 ab
(a-b )^2 = a sq. + b sq. - 2 ab
a sq.- b sq.=(a+b)(a-b)