Question

07. Si x= (-2)/3 ; hallar x3 -3x2 – x

Answer 1

Respuesta:

$\frac{-26}{27}$

Explicación paso a paso:

Si: $x=\frac{-2}{3}$

Hallar entonces:

$x^{3}- 3x^{2} -x$

$(\frac{-2}{3}) ^{3}- 3(\frac{-2}{3} )^{2} -\frac{-2}{3}$

$\frac{-8}{27} -\frac{4}{3} +\frac{2}{3}$

$\frac{-8-36+18}{27}$

$\frac{-26}{27}$