Question

Solve The Following :


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Answer 1

Answer:

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Answer 2

STEP BY STEP EXPLANATION :

Q.2x+3y=13 ; xy=6

use the identity :

(a+b)³=a³+b³+3ab(a+b)

=》(2x+3y)³=(13)³

=》(2x³)+(3y³)+3(2x)(3y)(2x+3y)=2197

=》8x³+27y³+18xy(13)=2197

=》8x³+27y³+18(6)(13)=2197

=》8x³+27y³+1404=2197

=》8x³+27y³=2197-1404

•°• 8x³+27y³=793