Math, asked by madamgandhi, 11 months ago

If a+b=4 and ab=21 find the value of a cube +b cube

Answers

Answered by Raghav1012

1

Answer:

a³+b³ = (a+b)³ - 3ab(a+b)

a³+b³ = 4³ - 3×(21)×(4)

=64 - 252 = - 188

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