Question 1196190
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In reference to the solution @ikleyn posted


(a^2-2ab+b^2) + (a^2-2ac+c^2) + (b^2-2bc + <font size=4 color=red>b^2</font>) = 0
should be
(a^2-2ab+b^2) + (a^2-2ac+c^2) + (b^2-2bc + <font size=4 color=red>c^2</font>) = 0


Edit: Ignore my response since the issue has been fixed. Thank you @ikleyn
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