Question

factorise (x-y)3-8x3​

Answer 1

Answer:

3x-3y=24

whole term divided by 3

x-y=8

x-y-8

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Answer 2

Step-by-step explanation:

(x-y)³-(2x)³

a³-b³=(a-b)³+3ab(a-b)

by using given formula

we get

(x-y-2x)³+3(2x²-2xy)(x-y-2x)

(-y-x)³+6x(x-y)(-x-y)

(-x-y)[(-y-x)²+6x(x-y)]

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