X2+5x-204=0

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Solution for X2+5x-204=0 equation:



X2+5X-204=0
We add all the numbers together, and all the variables
X^2+5X-204=0
a = 1; b = 5; c = -204;
Δ = b2-4ac
Δ = 52-4·1·(-204)
Δ = 841
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$X_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$X_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$\sqrt{\Delta}=\sqrt{841}=29$
$X_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(5)-29}{2*1}=\frac{-34}{2} =-17 $
$X_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(5)+29}{2*1}=\frac{24}{2} =12 $

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