9x2+32=3x2+86

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Solution for 9x2+32=3x2+86 equation:



9x^2+32=3x^2+86
We move all terms to the left:
9x^2+32-(3x^2+86)=0
We get rid of parentheses
9x^2-3x^2-86+32=0
We add all the numbers together, and all the variables
6x^2-54=0
a = 6; b = 0; c = -54;
Δ = b2-4ac
Δ = 02-4·6·(-54)
Δ = 1296
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$\sqrt{\Delta}=\sqrt{1296}=36$
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(0)-36}{2*6}=\frac{-36}{12} =-3 $
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(0)+36}{2*6}=\frac{36}{12} =3 $

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