Tìm x, biết: (a) 2 x + 2 /5 = − 2 /5

Tìm x, biết:

(a) \(2x + \frac{2}{5} = \frac{{ - 2}}{5}\)

(b) \(\frac{3}{2} - {\left( {\frac{3}{2} - x} \right)^2} = \frac{5}{4}\).