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x^2+1685x+709771=0
a = 1; b = 1685; c = +709771;
Δ = b2-4ac
Δ = 16852-4·1·709771
Δ = 141
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{-(1685)-\sqrt{141}}{2*1}=\frac{-1685-\sqrt{141}}{2} $$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(1685)+\sqrt{141}}{2*1}=\frac{-1685+\sqrt{141}}{2} $
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