Question

-
$- \frac{2}{3} {x}^{2} + 5x \: para \: x = - 3$

Answer 1

$- \frac{2}{3} \times 9 - 15 \\ - \frac{18}{3} - 15 \\ \frac{18 - 45}{3} \\ - \frac{27}{3} \\ - 9$

Answer 2

$-( \frac{2}{3} ) x^{2} +5x$
$- \frac{2}{3} *(-3)^{2} +5*(-3)$
$- \frac{2}{3} *9-15$
$-2*3-15$
$-6-15$
$-21$