$\int\frac{5x^2-11x+5}{\left(x-2\right)\left(x-1\right)^2}dx$

$5x-6x+2.5-3$

$z^2+11z=-24$

$\frac{a^2-4}{4^3+1}+\frac{3}{a^2-a+1}+\frac{1}{a+1}$

$\int\left(x^3+7x-1\right)\left(9x^2+21\right)dx$

$\frac{dx}{dy}=\frac{6}{5}y^2\left(x+4\right)$

$\frac{ds}{dt}=-3\sin\left(3t\right)$