$\int_{-\infty}^0\left(\frac{1}{4x^2+4x+5}\right)dx$

$-20-+10+-2$

$\left(x+1\right)sqrt\left(e^x+1\right)$

$\frac{\left(\left(x\cos\left(t\right)+h\right)-h\right)}{x^2}$

$\left(9a^7b^8\right)^2$

$\frac{x+3}{24}=\frac{5}{8}$

$\int\frac{\left(2x^2\right)}{\left(x-2\right)\left(x^2+4\right)^2}dx$