Write in Standard Form 1-5x-1/3x^3

$1 - 5 x - \frac{1}{3} x^{3}$

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

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

Combine $x^{3}$ and $\frac{1}{3}$ .

$1 - 5 x - \frac{x^{3}}{3}$

Simplify the expression.

Move $1$ .

$- 5 x - \frac{x^{3}}{3} + 1$

Reorder $- 5 x$ and $- \frac{x^{3}}{3}$ .

$- \frac{x^{3}}{3} - 5 x + 1$

Reorder terms.

$- (\frac{1}{3} x^{3}) - 5 x + 1$

Remove parentheses.

$- \frac{1}{3} x^{3} - 5 x + 1$