Thread:John Lee Gamma Guild Team Vi Hart/@comment-25079450-20150906050807/@comment-25079450-20150910041453

HMcCoy wrote: First sentence correct, second sentence incorrect. Why? I don't get it.... (3)^2=9 and (-3)^2=9

if you think that x = what's in the parenthesis, wouldn't x = {3, -3}???