$-3xm\left(x+y\right)+6m^2\left(x+y\right)-12m^3\left(x+y\right)$

$36x^2+192xy+256x^2$

$8x\left(2\right)+10+4x-1\cdot4x$

$\left(-5+3\right)^3+\left(1+3\right)^2$

$\tan\left(x\right)=-\frac{\sin\left(x\right)}{2}$

$-\sqrt{1.6}<-\frac{3}{2}$