Question

1. a³ +b³ =?
2. a³ - b³ = ? i need both formulae

Answer 1

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

Answer 2

1. a³+b³ = (a+b)(a²-ab+b²)

Also =>a³+b³=(a+b)³-3 ab(a + b)

2. a³-b³= (a-b)(a²+ab+ b²)

Also =>a³-b³=(a-b)³ +3ab(a-b)

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