$\frac{7}{y^{-4}}$

$5n^2\:+\:n-7\:+\:3n-2n^2$

$x^2-8x+24$

$\int\frac{32x^2}{\left(x-24\right)\left(x+8\right)^2}dx$

$-1\frac{\cos^2\left(x\right)}{1+\sin\left(x\right)}=\sin\left(x\right)$

$x-\frac{2x+1}{4}=\frac{5\left(x-1\right)}{12}$

$\left(3\right)\left(-5\right)\left(-2\right)\left(4\right)$