5x2+17x-54=0

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Solution for 5x2+17x-54=0 equation:



5x^2+17x-54=0
a = 5; b = 17; c = -54;
Δ = b2-4ac
Δ = 172-4·5·(-54)
Δ = 1369
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$\sqrt{\Delta}=\sqrt{1369}=37$
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(17)-37}{2*5}=\frac{-54}{10} =-5+2/5 $
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(17)+37}{2*5}=\frac{20}{10} =2 $

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