Question

simplify
(3a+4)^2-(3a-4)^2​

Answer 1

$(3a + 4) {}^{2} - {(3a - 4)}^{2} \\ = (3a + 4 + (3a - 4))(3a + 4 - (3a - 4)) \\ = (6a)(8) = 48a$

I used the formula that a²-b² = (a+b)(a-b)

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Answer 2

Hope you will understand the answer