$\int x^{4}e^{-5x}dx$

$15,2\:+\:7$

$15\left(-2-6\right)$

$\frac { 5 x ^ { 3 } - 3 x ^ { 2 } - 20 x + 12 } { 5 x - 3 }$

$\int-7x\left(3x+17\right)^{\frac{1}{2}}dx$

$396.26+3.9258+2453.12+0.45$

$\cos\left(b\right)+\tan\left(b\right)=\csc\left(b\right)\cdot\sec\left(b\right)$