Question

me ajuder gente por favooooo​

Answer 1

Resposta:

a)-4

b)28

c)1

d)1/18

e)3/2

f)-65/36

Explicação passo-a-passo:

a)

$(-2)^2+(-2)^3\\=4-8\\=-4$

b)

$(-3)^0-(-3)^3\\=1+27\\=28$

c)

$3^{-1}+\left(\frac{3}{2}\rigth)^{-1}$

$=\frac{1}{3}+\frac{2}{3}$

$=\frac{1+2}{3}$

$=\frac{3}{3}$

$=1$

d)

$8^{-1}\times(\frac{2}{3})^2$

$=\frac{1}{8}\times\frac{2^2}{3^2}$

$=\frac{1}{8}\times\frac{4}{9}$

$=\frac{1\times4}{8\times9}$

$=\frac{4}{72}$

$=\frac{1}{18}$

e)

$2^{-1}+2^0$

$=\frac{1}{2}+1$

$=\frac{1}{2}+\frac{2}{2}$

$=\frac{1+2}{2}$

$=\frac{3}{2}$

f)

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

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

$=\frac{4}{9}-(\frac{3}{2})^{2}$

$=\frac{4}{9}-(\frac{3}{2})(\frac{3}{2})$

$=\frac{4}{9}-\frac{9}{4}$

$=\frac{4\times4}{9\times4}-\frac{9\times9}{4\times9}$

$=\frac{16}{36}-\frac{81}{36}$

$=\frac{16-81}{36}$

$=-\frac{65}{36}$