Tính giá trị biểu thức:
a) \(\dfrac{11}{125}-\dfrac{17}{18}-\dfrac{5}{7}+\dfrac{4}{9}+\dfrac{17}{14}\)
b) \([9,6\left(\dfrac{3}{4}-\dfrac{5}{2}\right)^2][6\left(\dfrac{-2}{3}\right)+12\left(\dfrac{-2}{3}\right)^2+18\left(\dfrac{-2}{3}\right)]\left(\dfrac{3}{2}\right)^2\)