1125-5x^2=0

Solution for 1125-5x^2=0 equation:

1125-5x^2=0

a = -5; b = 0; c = +1125;
Δ = b2-4ac
Δ = 02-4·(-5)·1125
Δ = 22500
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$\sqrt{\Delta}=\sqrt{22500}=150$
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(0)-150}{2*-5}=\frac{-150}{-10}
=+15
$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(0)+150}{2*-5}=\frac{150}{-10}
=-15
$