$\frac{\left(3x+2\right)}{\left(x-1\right)\left(x+4\right)}$

$m\left(x+1\right)+n\left(x+1\right)+w\left(x+2\right)$

$\int r^3\cdot\frac{1}{sqrt\left(25+r^2\right)}dr$

$\int\left(\frac{24}{1+25r^2}\right)dr$

$\tan\left(85\right)\frac{23}{9.5}$

$\left(-\infty.-7\right)$

$+4-2+5-1+2$