The derivative of a function of f at x is give by:f(x) = lim h tend 0 f(x+h)-f(x) / hproviding the limit exists

Use the definition of the derivative to find the derivative of f(x) = 5x^2 + 9x + 3

Enter the fully simplified expression for f(x+h) - f(x). Do not factor.

f(x+h) - f(x) = ? - write out all work

f(x) = ? - write out all work