$\left(x+4\right)\left(4\right)\left(x^2\right)$

$x^2-4x+16$

$12m^2+25m+12$

$\left(x+1\right)\cdot\left(x+\frac{1}{2}\right)\cdot\left(2x^2+12x-2\right)$

$\frac{dy}{dx}=\left(y-3\right)^2cos\left(x\right)$

$\left(7\right)x\left(-3\right)x\left(5\right)x\left(2\right)$

$z^2-2z^2-7z^2+5z^2-3z^2$