20x2-27X=14

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Solution for 20x2-27X=14 equation:



20x^2-27x=14
We move all terms to the left:
20x^2-27x-(14)=0
a = 20; b = -27; c = -14;
Δ = b2-4ac
Δ = -272-4·20·(-14)
Δ = 1849
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$\sqrt{\Delta}=\sqrt{1849}=43$
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(-27)-43}{2*20}=\frac{-16}{40} =-2/5 $
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-27)+43}{2*20}=\frac{70}{40} =1+3/4 $

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