28x2+14x=0

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Solution for 28x2+14x=0 equation:



28x^2+14x=0
a = 28; b = 14; c = 0;
Δ = b2-4ac
Δ = 142-4·28·0
Δ = 196
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$\sqrt{\Delta}=\sqrt{196}=14$
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(14)-14}{2*28}=\frac{-28}{56} =-1/2 $
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(14)+14}{2*28}=\frac{0}{56} =0 $

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