Rational function/2x^3-4x^2+5x-1 over 4x+3/Primitive function direct and with substitution/Exercise

Write the rational function

{\frac {2x^{3}-4x^{2}+5x-1}{4x+3}}

in the new variables ${}u=4x+3$ . Compute the antiderivative through the real partial fraction decomposition and through the substitutio ${}u=4x+3$ .