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Let $\>f(x) = 2x^{3}+1$ .

a) Find $\>f(x+h)$ :

b) Find $\>f(x+h)-f(x)$ :

c) Find $\> \frac {f(x+h)-f(x)} {h}$ :

d) Find $\> f'(x)$ :

You can earn partial credit on this problem.