0.0045-0.003x × 0.003-0.000x= x 2

0.0045-0.003x × 0.003-0.000x= x²

0,0045-0,00009x-x²=0

$x_{1/2} = \frac{0,00009\pm\sqrt{0,00009^2-4\cdot(-1)\cdot 0,0045}}{-2} = \frac{0,00009\pm0,1342}{-2}$

x₁=0,5667 ; x₂=-0,5676