Question

Giai phuong trinh:
a, x³+\(\frac{x^3}{\left(x-1\right)^3}\)+\(\frac{3x^2}{x-1}\)=2
b, \(\frac{2x}{3x^2-5x+2}\)+\(\frac{13x}{3x^2+x+2}\)=6
c, x²+\(\frac{25x^2}{\left(x+5\right)^2}\)=11
d, \(\frac{x^2}{3}\)+\(\frac{48}{x^2}\)=10.(\(\frac{x}{3}-\frac{4}{x}\))