$3\left(x+12\right)=5\left(x-6\right)$

$\frac{3x^4-2x^3+2}{x-3}$

$5\left(\frac{3}{2}x-8\right)$

$\sec\left(\frac{7\pi}{6}\right)cos\left(\frac{7\pi}{6}\right)+\sin\left(\frac{7\pi}{6}\right)$

$\int\left(5x+4\right)^2dx$

$\int_{298}^{650}\left(b\cdot x\right)dx$

$\int e^{\frac{x}{2}}sen\left(x\right)dx$