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squishy1193
 3 years ago
find the difference quotient of f that is find f(x+h)f(x)/h for f(x) =x^22x+4
squishy1193
 3 years ago
find the difference quotient of f that is find f(x+h)f(x)/h for f(x) =x^22x+4

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febylailani
 3 years ago
Best ResponseYou've already chosen the best response.0i think, it's not f(x+h)=f(x)/h but, f(x+h)f(x)/h

squishy1193
 3 years ago
Best ResponseYou've already chosen the best response.0yes im sorry i wrote that wrong it is f(x+h)f(x)/h

campbell_st
 3 years ago
Best ResponseYou've already chosen the best response.0ok will substitute x + h for x thats what f(x + h) is asking you to do \[\frac{(x + h)^2 2(x +h) + 4  (x^2 2x + 4)}{h}\] the next step is to expand and then collect like terms... this will leave the numerator with terms involving h which will be able to cancel with the denominator
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