$\int\left(x^{2}-4x\right)\cdot\left(3x-5\right)dx$

$\frac{\left(x-2\right)}{\left(x^2-5x-24\right)}+\frac{3}{\left(x^2+11x+24\right)}$

$\frac{\sin\left(2\right)+\sin\left(3\right)}{\sin\left(4\right)-\sin\left(3\right)}$

$x\frac{13}{52}$

$x<12-3x$

$\frac{1}{x-1}+\:\frac{1}{x+1}=\:\frac{4}{3}$

$\frac{1}{\cos\left(x\right)}+sec\left(x\right)$