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x^2+6x-5500=0
a = 1; b = 6; c = -5500;
Δ = b2-4ac
Δ = 62-4·1·(-5500)
Δ = 22036
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}$$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$
The end solution:
$\sqrt{\Delta}=\sqrt{22036}=\sqrt{4*5509}=\sqrt{4}*\sqrt{5509}=2\sqrt{5509}$$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(6)-2\sqrt{5509}}{2*1}=\frac{-6-2\sqrt{5509}}{2} $$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(6)+2\sqrt{5509}}{2*1}=\frac{-6+2\sqrt{5509}}{2} $
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