$\left(x^{-2}-x^{-3}\right)\left(3x^{-1}+4x^{-4}\right)$

$9x+19=10x+10$

$x+5>4$

$\frac{x^2}{4}+4y^2$

$\lim_{x\to4}\left(\frac{\left(x^2-16\right)\sin\left(x-4\right)}{2x^2-5x-12}\right)$

$[\left(6^{2}\right)^{2}\cdot4^{4}]:\left(2^{3}\right)^{4}$

$\int\sin^5m\cdot dm$