$-2\cos2x=2$

$\frac{2\left(-5\right)-7\left(3-5+2\right)-2\left(3^2-1\right)}{3-2\left(5-7\right)-5}$

$\sqrt{3.5}$

$64x^4y^2-27xy^5$

$\frac{x^4-3x^2+2}{x-1}$

$\frac{dy}{dx}=\left(x-3\right)\left(y-10\right)$

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