$\frac{8y^2-50}{2y-5}$

$\left(-9+6\right)\left(+5-11\right)+\frac{3\left(-2+6\right)}{\left(-6\right)}$

$\left(a+7\right)\left(a-4\right)$

$2x^2-14x+32$

$2\log\left(x\right)-\log\left(4\right)=\log\left(36\right)$

$xy=-x^2\frac{dy}{dx}+y$

$\sqrt[2]{2}+\sqrt[2]{2}-5\sqrt[2]{2}$