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12x^2-2=11x
We move all terms to the left:
12x^2-2-(11x)=0
a = 12; b = -11; c = -2;
Δ = b2-4ac
Δ = -112-4·12·(-2)
Δ = 217
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}$$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(-11)-\sqrt{217}}{2*12}=\frac{11-\sqrt{217}}{24} $$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-11)+\sqrt{217}}{2*12}=\frac{11+\sqrt{217}}{24} $
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