$-4\left(x-7\right)=-8\left(x+2\right)$

$5d-7+2c-7d+3$

$\int\left(-e^{-5x}\right)dx$

$x^3\frac{\left(512x^5\right)}{768x^{15}}$

$\int\frac{1}{\left(4+x\right)^{\frac{3}{2}}}dx$

$3\sec^2\left(x\right)-2\tan^2\left(x\right)=4$

$\left(3x^3-2x^2+2x-7\right)\cdot\left(4x^5+1\right)$