Write in Standard Form -20=8x-4x^2-3

$- 20 = 8 x - 4 x^{2} - 3$

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

Subtract $8 x$ from both sides of the equation.

$- 20 - 8 x = - 4 x^{2} - 3$

Add $4 x^{2}$ to both sides of the equation.

$- 20 - 8 x + 4 x^{2} = - 3$

Add $3$ to both sides of the equation.

$- 20 - 8 x + 4 x^{2} + 3 = 0$

Add $- 20$ and $3$ .

$- 8 x + 4 x^{2} - 17 = 0$

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

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

Reorder $- 8 x$ and $4 x^{2}$ .

$4 x^{2} - 8 x - 17 = 0$