Which of the following is a valid formula for the instantaneous rate of change of the function f(x) = x²-?x+5? Select the correct answer below: (x + h)? - (x + h)+5- (x -x+5) f(x) = lim (x + h)² - (x +h) + 5 - (h - h+ 5) f'(x) = lim «+h) + 5 - (h²-h+5) f'x) = lim (x + h)-(x+h) +5- (x-+5) 7x) = lim

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Q: find the derivative by the limit process. f(x)=14-x^2

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