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A comment on Traffic Engineers’ Epic Fail. Parent comment

Re:Traffic Engineers’ Epic Fail by scotty79 on Sunday December 17, 2017 @03:25AM (#15944808) 

    f(x)=a*x^2

    f(2*x)=a*(2*x)^2=a*4*x^2=4*a*x^2=4*f(x)
Doubling the argument quadruples the value of quadratic function.
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Re:Traffic Engineers’ Epic Fail by GalacticDomin8r on Friday December 29, 2017 @08:31PM (#16033242)
Try again using order of operations. It does not expand to (2*x)^2, it is simply 2x^2.

To say it another way: 4x^2 != 2x^2

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