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$x {(x - y)}^{3} + 3 x y (x - y)$

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Solution

$x (x - y)^{3} + 3 x y (x - y)$
$x {x^{3} + 3 x y^{2} - 3 x^{2} y - y^{3}} + 3 x^{2} y - 3 x y^{2}$
$\Rightarrow x^{4} + 3 x^{2} y^{2} - 3 x^{3} y - y^{3} x + 3 x^{2} y - 3 x y^{2}$ .

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Similar questions

What is $(x - y)^{3}$ ?

(x - y)^{3}

x (x^{3} - y^{3}) + 3 x y (x - y)

\frac{x}{y} + \frac{y}{x}

\neq

x^{3} + y^{3}

Factorise $x (x - y)^{3} + 3 x^{2} y (x - y)$

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