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x^2-22+6x+5=180
We move all terms to the left:
x^2-22+6x+5-(180)=0
We add all the numbers together, and all the variables
x^2+6x-197=0
a = 1; b = 6; c = -197;
Δ = b2-4ac
Δ = 62-4·1·(-197)
Δ = 824
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}$$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$
The end solution:
$\sqrt{\Delta}=\sqrt{824}=\sqrt{4*206}=\sqrt{4}*\sqrt{206}=2\sqrt{206}$$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(6)-2\sqrt{206}}{2*1}=\frac{-6-2\sqrt{206}}{2} $$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(6)+2\sqrt{206}}{2*1}=\frac{-6+2\sqrt{206}}{2} $
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