$-5<\frac{4-3x}{3}$

$t^2+14t=-39$

$y^2\cdot dx-x\cdot y\cdot dy=x^2\cdot y\cdot dy$

$\left(2m^2-1\right)^2$

$3+4-5\cdot3+\frac{9}{3}$

$e=\frac{\left(a+b\right)^{2}-\left(a-b\right)^{2}}{4ab}$

$\frac{\left(x^2+2x\right)\cdot\left(x^2-2x-3\right)}{\left(x+3\right)\cdot\left(x-1\right)\cdot24}$