$2\sqrt{3}\sin\left(x\right)^2=3\sin\left(x\right)$

$\left(5^2+1\right)\left(5^4+1\right)$

$d=c+10$

$4xy^3-32x^2y^2$

$12x+18y+22\left(15-\left(x+y\right)\right)+17\left(12-x\right)+12\left(12-y\right)+5\left(x+y\right)$

$\left(2\sqrt{2}-7\sqrt{5}\right)\cdot\:\left(2\sqrt{2}+7\sqrt{5}\right)$

$\frac{du}{dt}=e^{2u+9t}\:$