how to show work f(x)=-x2=2x
I think you want to find the derivative, then
f(x) = - x^2
then by derivative definition, then derivative of x^n is nx^n-1, then
f ' (x) = - 2x^2-1
f ' (x) = - 2x^1
f ' (x) = - 2x
Hence the derivative is - 2x.
If you don't want it, then please post the problem correctly and with full specification. thanks
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