25x2-9x=0

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Solution for 25x2-9x=0 equation: 



25x^2-9x=0

a = 25; b = -9; c = 0;
Δ = b2-4ac
Δ = -92-4·25·0
Δ = 81
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$\sqrt{\Delta}=\sqrt{81}=9$


$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(-9)-9}{2*25}=\frac{0}{50}
=0
$


$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-9)+9}{2*25}=\frac{18}{50}
=9/25
$

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