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x2-126x+125=0
We add all the numbers together, and all the variables
x^2-126x+125=0
a = 1; b = -126; c = +125;
Δ = b2-4ac
Δ = -1262-4·1·125
Δ = 15376
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{15376}=124$$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(-126)-124}{2*1}=\frac{2}{2} =1 $$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-126)+124}{2*1}=\frac{250}{2} =125 $
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