$x+7^2.x-4^2$

$\int\left(\frac{5u}{\:34}+\frac{v}{17}\:.\:\frac{3u}{34}+\frac{4v}{17}\right)dx$

$\int\left(\frac{7-e^x}{e^{5x}}\right)dx$

$_{\left(3x-6\right)\left(3x+6\right)}$

$\left(\frac{3}{4}x^3-5x^2+x-\frac{1}{2}\right)+\left(2x^4+\frac{2}{3}x^3-2x+4\right)$

$\frac{dx}{dt}=8-3y$

$\int_{\frac{\pi}{6}}^{\frac{\pi}{4}}\left(2\sin\left(3x\right)\cos\left(2x\right)\right)dx$