$\left(-5x-9\right)^2$

$\frac{dy}{dx}=\frac{\sec^2\left(x\right)}{1+2y}$

$\left(3x-8y-2z\right)\left(7x+3y+z\right)$

$\int\left(x^2+4\right)^5dx$

$\frac{1}{2}a+\frac{1}{3}b+\frac{1}{4}c-d,\:a=2,\:b=4,\:c=3,\:d\:=-25$

$\int_0^{\infty}\left(s^{\frac{2}{3}}\right)ds$

$-15x-6$