$\int\left(\frac{1}{5}e^{5t}\right)dx$

$x^2+14x-15=0$

$-23d+81\le-98d+82$

$2\left(2.5m^3+\frac{1}{2}m^2-3m\right)$

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

$\ln\left(x^2-x-12\right)-\ln\left(2x+6\right)=\ln\left(0.5\right)$

$\left(-19+21\right)\cdot\left(-2\right)+\left(32-42\right)\cdot3$