$\left(\frac{y}{x}\right)^{-4}$

$y=cx^2+ln\left(bx\right)+d$

$\int\left(\frac{x+1}{x^2+2x+9}\right)dx$

$\left(-5\right)\left(+10\right)\left(-30\right)\left(8\right)$

$\ln\left(y\right)=\ln\left(\sin\left(3x\right)^{1+7x}\right)$

$\lim_{x\to1}\left(\frac{x-x^x}{1-x+\ln\left(x\right)}\right)$