Question

49w2-81x2
$(a + 3) { }^{2} - 9$
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Answer 1

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Answer 2

Answer:

Perhaps you want to factorize the given expression, which is given below:

$49 {w}^{2} - 81 {x}^{2} \\ = ( {7w})^{2} - ( {9x})^{2} \\ = (7w + 9)(7w - 9)\\\\ (a+3)^2 - 9\\=(a+3)^2 - (3)^2 \\=(a+3+3)(a+3-3)\\=(a+6)\times a\\=a(a+6)$