$\left(12a+8b-4c\right)+\left(5a-7b+c\right)+\left(-10a-4b\right)$

$\frac{\left(m^2-11m+30\right)}{m-6}$

$2'=5$

$4x^2-16+64$

$16a^2+40ab^2+40b^2$

$\int2x\sqrt{\left(1-x\right)}dx$

$15\left(\cos^2\left(x\right)\right)+16\left(\sin^2\left(x\right)\right)=15+\sin^2\left(x\right)$