$\frac{m}{\frac{m^2}{s^2}}$

$3a^2-5ab+2b^2\cdot4a-5b$

$\sec\left(9\right)\cot\left(9\right)^2\tan\left(9\right)$

$7\left(x^2+2\right)-5x^3+x-1-\left(x+3\right)\left(x-1\right)$

$2\log\left(x\right)=\log\left(\frac{x}{2}-\frac{3}{5}\right)$

$16x^2+12x=0$

$-5\left(v+4\right)+32<5\left(3-v\right)$