Question

factorise (2x-y)³-2x+y​

Answer 1

Answer:

Step-by-step explanation:

(2x-y)^3-(2x-y)

=(2x-y)[2x-y)^2-1]          {1 can also be represented by 1^2)

=(2x-y)(2x-y+1)(2x-y-1)         {by the formula a^2-b^2=(a+b)(a-b)}

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