Factorise : $64 x^{3} - 729 y^{3}$

(4 x - 9 y) (16 x^{2} + 81 y^{2} + 36 x y)

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(4 x + 9 y) (16 x^{2} + 81 y^{2} + 36 x y)

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(4 x - 9 y) (16 x^{2} - 81 y^{2} + 36 x y)

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(4 x - 9 y) (16 x^{2} + 81 y^{2} - 36 x y)

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Solution

The correct option is A $(4 x - 9 y) (16 x^{2} + 81 y^{2} + 36 x y)$
$64 x^{3} - 729 y^{3}$
$= (4 x)^{3} - (9 y)^{3}$
$= (4 x - 9 y) {(4 x)^{2} + (9 y)^{2} + (4 x) \times (9 y)}$
$= (4 x - 9 y) (16 x^{2} + 81 y^{2} + 36 x y)$

Suggest Corrections

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64 x^{3} - 729 y^{3}

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Factorise: 1+64x³

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64 x^{3} - 729 y^{3}

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