$6a^2b^5-15a^3b^4+18a^5$

$\frac{\left(\frac{2}{t}\right)}{\left(\left(\frac{2}{t}\right)-1\right)}$

$\int\frac{x^2}{\left(x-a\right)^{\frac{3}{2}}}dx$

$\left(x^2+1\right)\left(3x^2\right)+\left(x^3+1\right)\left(2x\right)$

$5-9+8-15-4+2$

$\left|2\right|^6\left|2\right|^4$

$25d^8-80d^4+64$