2x2+27x-162=0

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Solution for 2x2+27x-162=0 equation:



2x^2+27x-162=0
a = 2; b = 27; c = -162;
Δ = b2-4ac
Δ = 272-4·2·(-162)
Δ = 2025
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$\sqrt{\Delta}=\sqrt{2025}=45$
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(27)-45}{2*2}=\frac{-72}{4} =-18 $
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(27)+45}{2*2}=\frac{18}{4} =4+1/2 $

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