3(a^2)+1=2-2a

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Solution for 3(a^2)+1=2-2a equation:



3(a^2)+1=2-2a
We move all terms to the left:
3(a^2)+1-(2-2a)=0
We add all the numbers together, and all the variables
3a^2-(-2a+2)+1=0
We get rid of parentheses
3a^2+2a-2+1=0
We add all the numbers together, and all the variables
3a^2+2a-1=0
a = 3; b = 2; c = -1;
Δ = b2-4ac
Δ = 22-4·3·(-1)
Δ = 16
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$a_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$a_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$\sqrt{\Delta}=\sqrt{16}=4$
$a_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(2)-4}{2*3}=\frac{-6}{6} =-1 $
$a_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(2)+4}{2*3}=\frac{2}{6} =1/3 $

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