$\left(b+6\right)\left(b+1\right)-2\left(b+6\right)$

$\pi^{0.33}$

$\int\left(4x^2-6x\right)dx$

$\left(9x^7-4\right)^2$

$\int\frac{1}{4x\left(7-x\right)}dx$

$0.02\left(-0.6\right)^4-0.13\left(-0.6\right)^3-0.34\left(-0.6\right)^2+1.5\left(-0.6\right)+2$

$\lim x->2\left(\frac{x^2-3x-10}{x+2}\right)$