Write in Standard Form 2x-x^3+8x^2-10x^5+5

$2 x - x^{3} + 8 x^{2} - 10 x^{5} + 5$

To write a polynomial in standard form, simplify and then arrange the terms in descending order.

$a x^{2} + b x + c$

Move $2 x$ .

$- x^{3} + 8 x^{2} - 10 x^{5} + 2 x + 5$

Move $8 x^{2}$ .

$- x^{3} - 10 x^{5} + 8 x^{2} + 2 x + 5$

Reorder $- x^{3}$ and $- 10 x^{5}$ .

$- 10 x^{5} - x^{3} + 8 x^{2} + 2 x + 5$