$\int\frac{2x-1}{2x^3-9x^2+13x-6}dx$

$3m^2-30m+1200$

$\frac{1}{\left(x^2+x\right)}dx=\frac{1}{\left(y-1\right)}dy$

$8xz+\frac{2}{4}y^3-\frac{6}{2}xz+7xz+7xy^2z-\frac{5}{2}y^3+\frac{2}{3}xz$

$8,01+24,192$

$\left(x-3\right)\left(6-3x-x^2\right)^2\left(3-x\right)^2$

$x^4-12x^2$