-75,000x2-225,000x+3,000,000=0

Solution for -75,000x2-225,000x+3,000,000=0 equation:

-75.000x^2-225.000x+3.000.000=0

We add all the numbers together, and all the variables

-75x^2-225x=0

a = -75; b = -225; c = 0;
Δ = b2-4ac
Δ = -2252-4·(-75)·0
Δ = 50625
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$\sqrt{\Delta}=\sqrt{50625}=225$
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(-225)-225}{2*-75}=\frac{0}{-150}
=0
$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-225)+225}{2*-75}=\frac{450}{-150}
=-3
$