$\:\left(3x^2\:-\:2y^3\right)^2\:+\:\left(3y^3\:+\:2x^2\:\right)\:-\:13\left(x^4\:-y^6\right)\:$

$\frac{\sin\left(b\right)+\cos\left(b\right)\sin\left(b\right)^2}{\sin\left(b\right)^3}=\frac{1}{1-\cos b}$

$x^2-60x-720\:=\:0$

$x^2+3x^2-4^2$

$x+\sin^2y=2$

$\int\ln\left(x+\frac{1}{2}\right)dx$

$\int_0^{\pi}4\sin\left(x\right)dx$