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Question Number 118002 by mmmmmm1 last updated on 14/Oct/20

Answered by TANMAY PANACEA last updated on 14/Oct/20

x^3 +(1/x^3 )+x+(1/x) (x+(1/x))^3 −3(x+(1/x))+(x+(1/x)) now x+(1/x)=3+2(√2) +(1/(3+2(√2)))=3+2(√2) +3−2(√2) =6 required answer 6^3 −2×6 =216−12=204

x3+1x3+x+1x(x+1x)3−3(x+1x)+(x+1x)nowx+1x=3+22+13+22=3+22+3−22=6requiredanswer63−2×6=216−12=204

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