Write in Standard Form -16+9x^2=-8x+5x^2

$- 16 + 9 x^{2} = - 8 x + 5 x^{2}$

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

Add $8 x$ to both sides of the equation.

$- 16 + 9 x^{2} + 8 x = 5 x^{2}$

Subtract $5 x^{2}$ from both sides of the equation.

$- 16 + 9 x^{2} + 8 x - 5 x^{2} = 0$

Subtract $5 x^{2}$ from $9 x^{2}$ .

$- 16 + 4 x^{2} + 8 x = 0$

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

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

Move $- 16$ .

$4 x^{2} + 8 x - 16 = 0$