Question

Factorise a + b whole cube minus y cube

Answer 1

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Here is your answer.

$(a + b) {}^{3} - {y}^{3} \\ \\ = {a}^{3} + {b}^{3} + 3a {}^{2} b + 3a {b}^{2} - {y}^{3}$

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Answer 2

Answer:

Step-by-step explanation:

(a+b)^3 -y^3

a^3 + b^3 + 3a^2b + 3ab^2 - y^3