$\left(x+3\right)\left(x+6\right)>0$

$\frac{dy}{dt}\sec\left(t\right)=\frac{-y^{17}}{16}$

$\left(5\left(9\right)-4\left(2\right)\right)\left(3\left(7\right)+8\left(\frac{1}{2}\right)\right)$

$\frac{1}{9}+x^2+\frac{6}{9}$

$x^2+1\frac{1}{x^2}$

$\left(3xy^3\right)\left(-2xy^2\right)$

$-32+1+17+10$