Question

Me ajudem pfv
$- {x}^{3} - yx \: \: quando \: \: x = \frac{1}{2} \: \: e \: \: y = 3$
quero calculo pfv​

Answer 1

Explicação passo-a-passo:

$- x {}^{3} - yx$

$para$

$x = \dfrac{1}{2}$

$y = 3$

$( - \dfrac{1}{2} ) {}^{3} - 3 \times \dfrac{1}{2}$

$- \dfrac{1}{8} - \dfrac{3}{2}$

$- \dfrac{1 + 12}{8}$

$= > - \dfrac{13}{8}$