2y2-19y+45=0

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Solution for 2y2-19y+45=0 equation:



2y^2-19y+45=0
a = 2; b = -19; c = +45;
Δ = b2-4ac
Δ = -192-4·2·45
Δ = 1
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$y_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$y_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$\sqrt{\Delta}=\sqrt{1}=1$
$y_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(-19)-1}{2*2}=\frac{18}{4} =4+1/2 $
$y_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-19)+1}{2*2}=\frac{20}{4} =5 $

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