$\tan\left(x\right)+\cot\left(x\right)\left(\tan\left(x\right)\right)$

$\left(1\frac{1}{4}xy\right)^2$

$\frac{x^2+2ax+a^2}{mx+ma}$

$-\left(\left(2170\right)-\left(2719\right)\right)$

$\left(10a^2b-1\right)^2$

$2\left(2x+17\right)$

$\left(16m^3n^3\right)\left(4m^2n^2\right)$