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

$25-\left(-52\right)+8$

$5c^2-39c+25=c^2+2c-75$

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

$\csc^4\left(x\right)-cot^4\left(x\right)+cot^4\left(x\right)$

$2\left(-5\right)\left(4\right)\left(-8\right)$

$\left(5x+8y+3xy\right)^2$