Which type of identity is (2a+7)(2a-7) – InterviewSolution

1.	Which type of identity is (2a+7)(2a-7)
Answer» (a+B)(a-b) = a^2 - b^2Step-by-step EXPLANATION:(2a+7) (2a-7)(a + b) (a - b), where a = 2a, b = 7(a+b)(a-b) = a^2 - b^2(2a+7) (2a-7) = (2a)^2 - (7)^2 = 4a^2 - 49

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