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

$12^y=x$

$2\left(1+\sin\left(x\right)\right)=7+3\sin\left(x\right)$

$\lim_{x\to0}\left(\frac{2^{-x}-1}{1-3^x}\right)$

$\lim_{x\to\frac{\pi}{2}}\left(\frac{2sin\left(x^4\right)}{x}\right)$

$17x-10x+7$

$\frac{dx}{dy}=\frac{1}{x+y+1}$