$\frac{dy}{dx}=-k\left(t-20\right)^{\frac{5}{4}}$

$\left(b^0\right)^0$

$\left(3x^7+2y^3\right)\left(3x^7-2y^3\right)$

$p\left(x\right)=\left(x-1\right)^2\cdot\left(x+2\right)^2$

$35m^{3}+20m^{3}\pi-21an-12a\pi$

$\left(x+a\right)^2=x^2+2\cdot\left(x\cdot a\right)+a^2$

$\int\frac{y}{1+x^2y^2}dx$