$4x^2+28+49$

$\int\left(\frac{1}{y}-10y^7\right)dy$

$2\cos\left(5\pi x\right)-\sqrt{3}=0$

$\sqrt{\left(-3\right)^2}$

$\left(e^{\left(2\cdot y\right)}-y\cdot cos\left(x\cdot y\right)\right)\:+\:\left(2x\cdot e^{\left(2\cdot y\right)}-x\cdot cos\left(x\cdot y\right)\:+\:2y\right)\left(\frac{dy}{dx}\right)=0$

$sin^2\left(\theta\:\right)+cos\left(\theta\:\right)-1=0$

$81w^2-54wz+9z^2$