Question

(a+b)^2=a^2+b^2+2ab
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Answer 1

Answer:

This is correct formula.........

Answer 2

Answer:

Step-by-step explanation:

(a+b)^2=(a+b)(a+b)

=a(a+b)+b(a+b)

=a^2+ab+b^2+ab

=a^2+b^2+2ab

Hence proved