Question

2/3³-2(2/3)²+5(2/3)
ME AJUDEM PF

Answer 1

Vamos là.

(2/3)³ - 2*(2/3)² + 5*(2/3) =

8/27 - 2*4/9 + 5*2/3 =

8/27 - 24/27 + 90/27 =

(98 - 24)/27 = 74/27

Answer 2

Explicação passo-a-passo:

$( \frac{2}{3} ) {}^{3} - 2.( \frac{2}{3} ) {}^{2} + 5.( \frac{2}{3} ) = \frac{8}{27} - 2.( \frac{4}{9} ) + \frac{10}{3} = \frac{8}{27} - \frac{8}{9} + \frac{10}{3} = mmc = 27$

$\frac{8 - 24 + 90}{27} = \frac{74}{27}$