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-s^2+s=-2.333333333
We move all terms to the left:
-s^2+s-(-2.333333333)=0
We add all the numbers together, and all the variables
-1s^2+s+2.333333333=0
a = -1; b = 1; c = +2.333333333;
Δ = b2-4ac
Δ = 12-4·(-1)·2.333333333
Δ = 10.333333332
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:$s_{1}=\frac{-b-\sqrt{\Delta}}{2a}$$s_{2}=\frac{-b+\sqrt{\Delta}}{2a}$$s_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(1)-\sqrt{10.333333332}}{2*-1}=\frac{-1-\sqrt{10.333333332}}{-2} $$s_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(1)+\sqrt{10.333333332}}{2*-1}=\frac{-1+\sqrt{10.333333332}}{-2} $
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