$\int\frac{\left(6x^2+21x+1\right)}{\left(x^3+5x^2+3x+15\right)}dx$

$2\cos\left(2x\right)=3$

$\frac{d^3}{dx^3}\left(5x^3-4\right)^2$

$\left(ax^2+by\right)^2$

$\int\left(\frac{11x^2}{\left(144+x^2\right)^2}\right)dx$

$a+b=48$

$\left(-10\right)^{10}\cdot\left(-10\right)^4\left(-10\right)^2$