$8\left(1\right)\left(-2\right)\left(3\right)$

$16x^4+24x^2y+9x^2$

$\:ty^2dt+t^2ydy=0$

$\frac{1+\cos\left(x\right)}{1-\cos\left(x\right)}=\frac{1}{\left(\cot\left(x\right)-\csc\left(x\right)\right)}$

$\left(\frac{5}{3}\right)^02-1$

$\left(6\cdot16\right)-\left(3\cdot16\right)$

$f\left(x\right)=\left(x^4-3x^3+2x\right)^5$