English, asked by asthaavishwakarma, 6 months ago

if a+b=7, and ab =12,then the value. of a³+b³ is

Answers

Answered by ragini4321

0

Formula:-

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

putting value in formula:-

a^3+b^3=(7)^3-3×12(7)

=7×7×7-3×12×7

=343-252

=91

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