$x^213x+45$

$\frac{dy}{dx}=\left(3x-3\right)e^{\left(-4y\right)}$

$\int2x\left(x-3\right)dx$

$8\left(\frac{1}{4}\right)+3\left(1\right)$

$\int\left(\frac{2x}{\sqrt[3]{x^{2}}}-3x\right)dx$

$=\frac{1}{\csc\left(x\right)\cdot\cot\left(x\right)}$

$-2\left(5x-7y+2\right)$