Find the derivative of x^2f(x)

A. x[xf'(x)+2f(x)]
B. 2xf'(x)
C. x[xf'(x) +2f'(x)]
D. x^2f'(x)
E. None of these

1 answer

x^2 f' + 2 x f
= x [ x f' + 2 f ]
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