20x^2=2-3x

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Solution for 20x^2=2-3x equation:



20x^2=2-3x
We move all terms to the left:
20x^2-(2-3x)=0
We add all the numbers together, and all the variables
20x^2-(-3x+2)=0
We get rid of parentheses
20x^2+3x-2=0
a = 20; b = 3; c = -2;
Δ = b2-4ac
Δ = 32-4·20·(-2)
Δ = 169
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$\sqrt{\Delta}=\sqrt{169}=13$
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(3)-13}{2*20}=\frac{-16}{40} =-2/5 $
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(3)+13}{2*20}=\frac{10}{40} =1/4 $

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