7m^2+14m=0

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Solution for 7m^2+14m=0 equation: 



7m^2+14m=0

a = 7; b = 14; c = 0;
Δ = b2-4ac
Δ = 142-4·7·0
Δ = 196
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$m_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$m_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$\sqrt{\Delta}=\sqrt{196}=14$


$m_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(14)-14}{2*7}=\frac{-28}{14}
=-2
$


$m_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(14)+14}{2*7}=\frac{0}{14}
=0
$

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