$4x^3-2x^2-10x+6$

$\lim_{x\to0}\left(\left(1+2\sin\left(3x\right)\right)^{\left(40ta\right)}\right)$

$\frac{dy}{dx}\left(6x^2y+5y^2x=-4\right)$

$\frac{2}{x-1}+3=\frac{11}{x-1}$

$\int\left(-5\sec^2x\right)dx$

$\frac{\csc^2\left(x\right)\sec^2\left(x\right)}{\sec^2\left(x\right)+\csc^2\left(x\right)}$

$256x^4-x^2$