2k^2+15k=0

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Solution for 2k^2+15k=0 equation: 



2k^2+15k=0

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

$\sqrt{\Delta}=\sqrt{225}=15$


$k_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(15)-15}{2*2}=\frac{-30}{4}
=-7+1/2
$


$k_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(15)+15}{2*2}=\frac{0}{4}
=0
$

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