Question

Expand using suitable identity (2x-y)^3​

Answer 1

Answer:

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Answer 2

Answer & Step-by-step Explanation:

(2x-y)^3

Here, we can use this identity: (a-b)^3 = a^3-b^3-3ab(a-b)

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

= 8x^3 - y^3 - 6xy(2x-y)

= 8x^3 -y^3 - 12x^2y + 6xy^2

Hope this helps.