$0,15+1,355-0,5$

$16x^{3}y^{2}-8x^{2}y-24x^{4}y^{2}-401x^{2}y^{3}$

$p^'\left(t\right)=\frac{0.4e^{-0.1t}}{\left(1+e^{-0.1t}\right)^2}$

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

$\sqrt{x-10}\:\sqrt{x-10}$

$1000+650+450+-200+-50$

$\frac{64a^{3}-125b^{3}}{4a-5b}$