Question

expand the following
(√2x-3y)³​

Answer 1

Step-by-step explanation:

(a-b)³ = a³ - b³ - 3ab(a - b)

(√2x - 3y)³ = (√2x)³ - (3y)³ - 3×√2x×3y(√2 - 3y)

= 2√2x³ - 27y³ - 9√2xy(√2 - 3y)

= 2√2x³ -27y³ -18xy + 27√2xy²

I hope you will understand..

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Answer 2

Answer:

2√2x^3-18x^2y+27√2xy^2-27y^3

step by step explanation:-

(a-b)^3 = a^3-3a^2b+3ab^2-b^3

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

2√2x^3 - 18x^2y + 27√2xy^2 - 27y^3