a) \(\left[\left(\dfrac{3}{5}\right)^2-\left(\dfrac{2}{5}\right)^2\right]\). X = \(\left(\dfrac{1}{5}\right)^3\)

b) \(1\dfrac{2}{5}.x+\dfrac{3}{7}=\dfrac{-4}{5}\)

c) \(\left(3x-2\right)^2=9\)

d) \(|x+\dfrac{1}{3}|-4=-1\)

Nhưng tớ nhiều số lắm,

Tính : a)\(\left(\dfrac{2}{3}\right)^3\) b ) \(\left(-2\dfrac{3}{4}\right)^2\) c) \(\left(0,6\right)^4\) d) \(\left(\dfrac{-1}{2}\right)^4\) e) \(\left(\dfrac{-1}{2}\right)^5\)