Math, asked by spranav23671, 8 months ago

If 3x-2y=13 and xy=5 then 7x³-8y³=?

Answers

Answered by ms8120584

0

27x³-8y³=(3x-2y)³ +3*3x*2y(3x-2y)

= 13³+3*3*2*5*13

=2197+1170

=3367

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