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x2=9/841
We move all terms to the left:
x2-(9/841)=0
We add all the numbers together, and all the variables
x2-(+9/841)=0
We add all the numbers together, and all the variables
x^2-(+9/841)=0
We get rid of parentheses
x^2-9/841=0
We multiply all the terms by the denominator
x^2*841-9=0
Wy multiply elements
841x^2-9=0
a = 841; b = 0; c = -9;
Δ = b2-4ac
Δ = 02-4·841·(-9)
Δ = 30276
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{30276}=174$$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(0)-174}{2*841}=\frac{-174}{1682} =-3/29 $$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(0)+174}{2*841}=\frac{174}{1682} =3/29 $
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