$\lim_{x\to0}\left(\frac{sin\left(x\right)}{x}\right)^{\frac{1}{2}}$

$- 2 x - 10 x ^ { 2 } + 3 ( 5 x ^ { 2 } - 3 x )$

$-\frac{15}{7}y-\frac{6}{7}y$

$5-\left(-3+8\right)$

$\:\left(x\:-\:2y\right)\left(x\:-\:4y\right)$

$\int\frac{-2x^4-5\sqrt[5]{x}}{4x}dx$

$4^5\cdot8^3$