Question

factorise the following expression y² (1-x) -x³
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Answer 1

Answer:

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Step-by-step explanation:

5x2y = 5 × x × x × y                15xy2 = 3 × 5 × x × y × y                The common factors are 5, x, and y.                ∴5x2y – 15xy2 = (5 × x × x × y)                                        – (3 × 5 × x × y × y)                = 5 × x × y[x – (3 × y)]                = 5xy(x – 3y)