Question

identity of a minus b whole cube​

Answer 1

Answer:

Heya Mate ❤

Step-by-step explanation:

Here is ur answer

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

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Answer 2

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The identity can be derived as

$(x - y) {}^{3} \\ (x - y)(x - y)(x - y) \\ ( {x {}^{2} - xy - yx + {y}^{2} )}^{} (x - y) \\ ( {x}^{2} + {y}^{2} - 2xy)(x - y) \\ {x}^{3} + x {y}^{2} - 2 {x}^{2} y - {x}^{2} y - {y}^{3} + 2x {y}^{2} \\ {x}^{3} - {y}^{3} + 3xy {}^{2} - 3 {x}^{2} y \\ {x}^{3} - {y}^{3} - 3 {x}^{2} y + 3x {y}^{2} \\ {x}^{3} - {y}^{3} - 3xy(x - y)$

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