Math, asked by Anonymous, 1 year ago

x²-3x-1=0. find x³+1/x³

Answers

Answered by Silentknight1

x^2-3x-1=0
by solving x=1.7807 or x=-.28077
so x^3=5.6464 or x^3=-.02213
x^3+1/x^3=5.6464+1/5.6464
or= -.02213-1/.02213
so =5.8235 or= -45.31
both can be right answers

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