Question

If x+1/x=_1, find xsquare3 + 1/xsquare3

Answer 1

Answer:

${x}^{3} + \frac{1}{ {x}^{3} } = {(x + \frac{1}{x}) }^{3} - 3x \frac{1}{x} (x + \frac{1}{x} )$

$( - 1) {}^{3} - 3( - 1) = - 1 + 3 = 2 \: ans$