$4x^2+19x+12$

$\int\left(\frac{\sin^3\left(x\right)}{\cos^4\left(x\right)}\right)dx$

$\left(867\right)-\left(-59\right)$

$2b+6b$

$a:184\:c:513$

$\frac{x^2+7x+42}{x-3}$

$\left(15\right)-\left(-15\right)-\left(28\right)-\left(7\right)-\left(-11\right)-\left(1\right)-\left(12\right)$