X+y=8 and xy=9 find the value of x³+y³ – InterviewSolution

1.	X+y=8 and xy=9 find the value of x³+y³
Answer» N x+y=8 and xy=9 find the VALUE of x³+y³Step-by-step EXPLANATION:x+y=8 xy=9 x³+y³=? (x+y)³ = x³ + y³ + 3xy (x+y) ⇒ 8³ = (x³ + y³) + 3× 9×8⇒ 512 = (x³ + y³) +216⇒ 512-216 = x³ + y³ ⇒x³ + y³ = 296

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