What polynomial identity should be used to prove that 162 = (10 + 6)2?

The polynomial identity should be used to prove that 162 = (10 + 6)2 would be:

The square of a binomial:

Definition of a Perfect Square Binomial. A perfectsquare binomial is a trinomial that when factored gives you the square of a binomial. For example, the trinomial x^2 + 2xy + y^2 is a perfect square binomial because it factors to (x + y)^2.

Therefore:

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

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