$sin^2\left(x\right)=-4-5\:sin\left(x\right)$

$3.250+2.00+0.722$

$\frac{x^{-9}}{x^{-7}}$

$\int\tan\left(\pi-\frac{3y}{2}\right)^4dy$

$\frac{dy}{dx}\left(x^2+4\right)^x$

$4p^3qr^2\left(-2p-q^2\right)$

$\int\left(3x-4\right)^3dx$