$\frac{da}{dt}=-10a+80t$

$\left(-7x^3+6x^2-5\right)+\left(9x^3-6x-2\right)$

$49.7865671\pi24.5-.041003512\pi24.5^2+.038416\pi24.5^3$

$9-\left(-7\right)+\left(-6-\left(-7\right)\right)$

$-\left(-7\right)-\left(-7\right)\left(+3-3\right)$

$\left(a+b\right)^2+6\left(a+b\right)+9$

$\int\frac{\left(\ln\left(x\right)\right)^2}{\sqrt{x}}dx$