Write in Standard Form 2x^2-13=x

$2 x^{2} - 13 = x$

Subtract $x$ from both sides of the equation.

$2 x^{2} - 13 - x = 0$

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

$a x^{2} + b x + c = 0$

Move $- 13$ .

$2 x^{2} - x - 13 = 0$