Question

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Factorize:81-16x²

Answer 1

Heya ✋

Let see your answer !!!!

$81 - 16x ^{2} \\ = (9) ^{2} - (4x) ^{2} \\ = (9 + 4x)(9 - 4x)$




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Answer 2

(9)^2 - (4x)^2
(9+4x) * (9-4x)