Write in Standard Form -12x=3-5x^2

$- 12 x = 3 - 5 x^{2}$

Move all the expressions to the left side of the equation.

Subtract $3$ from both sides of the equation.

$- 12 x - 3 = - 5 x^{2}$

Add $5 x^{2}$ to both sides of the equation.

$- 12 x - 3 + 5 x^{2} = 0$

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

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

Move $- 3$ .

$- 12 x + 5 x^{2} - 3 = 0$

Reorder $- 12 x$ and $5 x^{2}$ .

$5 x^{2} - 12 x - 3 = 0$