Question

eu preciso de ajuda!!


por favor gente!!​

Answer 1

Explicação passo-a-passo:

(3/5)^-2 . (5/2)^-1 - (4/3)^-2 . (1/4)^-2

(5/3)^2 . (2/5)^1 - (3/4)^2 . (4/1)^2

25 /9 . 2/5 - 9/16 . 16/1

50/45 - 9/1

50/45 - 9/45 = 51 / 45

Answer 2

Resposta:

- 71/9

Explicação passo-a-passo:

$\left(\frac{3}{5}\right)^{-2}\cdot \left(\frac{5}{2}\right)^{-1}-\left(\frac{4}{3}\right)^{-2}\cdot \left(\frac{1}{4}\right)^{-2}\\\\\left(\frac{5}{3}\right)^2\cdot \left(\frac{2}{5}\right)^1-\left(\frac{3}{4}\right)^2\cdot \left(\frac{4}{1}\right)^2\\\\\left(\frac{25}{9}\right)\cdot \left(\frac{2}{5}\right)-\left(\frac{9}{16}\right)\cdot \left(\frac{16}{1}\right)\\\\\left(\frac{50}{45}\right)-\left(\frac{144}{16}\right)\\\\\left(\frac{10}{9}\right)-\left(9\right) = \frac{10-81}{9}\:=\:-\frac{71}{9}$