Question

answer this one please

Answer 1

Given a + b + 2c = 0.

a + b = -2c  ----- (1)

On cubing both sides, we get

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

a^3 + b^3 + 3ab(a + b) = -8c^3

a^3 + b^3 + 3ab(-2c) = -8c^3

a^3 + b^3 - 6abc = -8c^3

a^3 + b^3 + 8c^3 = 6abc.


Hope this helps!

Answer 2

Hello friend

Good morning

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your answer is given in the attachment

I hope it will help you thanks and

have a great day

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