9c^2-15c+0=0

Solution for 9c^2-15c+0=0 equation:

9c^2-15c+0=0

We add all the numbers together, and all the variables

9c^2-15c=0

a = 9; b = -15; c = 0;
Δ = b2-4ac
Δ = -152-4·9·0
Δ = 225
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$c_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$c_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$\sqrt{\Delta}=\sqrt{225}=15$
$c_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(-15)-15}{2*9}=\frac{0}{18}
=0
$
$c_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-15)+15}{2*9}=\frac{30}{18}
=1+2/3
$