Question

factorise x²-1 - 6y -9y²
sorry it is a maths question please answer

Answer 1

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$\green{\underline{SOLUTION}}$ ➡

$x {}^{2} - 1 - 6y - 9y {}^{2} \\ \\ = x{}^{2} - 9y {}^{2} - 6y - 1 \\ \\ = x {}^{2} - (9y {}^{2} + 6y + 1) \\ \\ = x {}^{2} - (3y + 1) {}^{2} \\ \\ = (x + 3y + 1)(x - 3y - 1)$

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Answer 2

Explanation:

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