$\left(-2\right)^{-2}\cdot\left(-2\right)^3\cdot\left(-2\right)^4$

$\log_{10}\left(x+10\right)-\log_{10}\left(x-1\right)=\log_{10}\left(12\right)$

$\int\:\frac{3e^{3x}}{9+e^{6x}}dx$

$4\sin^2\left(\frac{x}{3}\right)-3sen\left(\frac{x}{3}\right)=1$

$\lim_{x\to0}\left(\frac{x+\sqrt[3]{10+x}}{x+\sqrt{6+x}}\right)$

$6gb+g^2g+gbf$

$15x^2+25x-5+\:35\:x-50-66x^2$