$\int2\sec^2\left(x\right)x\left(\tan\left(x\right)+3\right)dx$

$\lim_{m\to0}\left(\frac{\left(8+m\right)^2-64}{m}\right)$

$\int\cos\left(-10y\right)\sin\left(3y\right)dy$

$\left(3a^2+5b^2\right)^2$

$\left(5g^2n^6\right)^4$

$6:2-2\left(3-1\right)$

$\int5x^2e^{8x}dx$