$897.23+58.1$

$3-\left(-4\right)+5-\left\{2-\left(4-\left(-7\right)+10\right)\right\}$

$3\sin\left(\frac{3\pi}{4}+1\right)$

$x^3+5x^2-8x-48$

$\lim_{x\to0}\left(\frac{1-\cos10x}{5x\sin2x}\right)$

$\left(x+2\right)\left[\left(x+2\right)^2-4x+\:\left(x-2\right)^2\:\right]-16\:$

$16a^2-b^2$