Math, asked by architbhardwaj2883, 17 days ago

If a+b=9andab=20find value of a cube +b cube

Answers

Answered by anandjtriipathi

0

Answer:

a+b = 9

(a+b)³=729

a³+b³+3ab(a+b)=729

a³+b³+( 3 * 20 * 9)= 729

a³ + b³ = 729 -540

a³ + b³ = 189

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