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176^2+210^2=c^2
We move all terms to the left:
176^2+210^2-(c^2)=0
We add all the numbers together, and all the variables
-1c^2+75076=0
a = -1; b = 0; c = +75076;
Δ = b2-4ac
Δ = 02-4·(-1)·75076
Δ = 300304
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:$c_{1}=\frac{-b-\sqrt{\Delta}}{2a}$$c_{2}=\frac{-b+\sqrt{\Delta}}{2a}$$\sqrt{\Delta}=\sqrt{300304}=548$$c_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(0)-548}{2*-1}=\frac{-548}{-2} =+274 $$c_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(0)+548}{2*-1}=\frac{548}{-2} =-274 $
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