$8xyz+2xy+xz\left(5xyz-3xy-4xz\right)$

$\left(ab\right)^{m}\cdot\left(ab\right)^{m+1}\cdot\left(ab\right)^{m-1}$

$\int\left(-\frac{6t^5}{\sqrt{t^6+2}}\right)dx$

$\sqrt{x-4=12}$

$\left(x+6\right)^2-\left(x+8\right)^2+4x+37$

$9\cdot4+6\cdot4$

$\int x\left(6x-3\right)^4dx$