Question

como acho o valor de x, e pfvr me explique

Answer 1

$(\frac{3}{5})^3\cdot(\frac{5}{3})^3\\ \\ =(\frac{3}{5})^3\cdot(\frac{3}{5})^{-3}\\ \\ =(\frac{3}{5})^{3+(-3)}\\ \\ =(\frac{3}{5})^{3-3}\\ \\ =(\frac{3}{5})^0\\ \\ =1$