find the critical numbers of the function:

factor a term out:

I see the 0 and 4, but the solution guide says there is also a critical number at .

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- Oct 26th 2009, 05:28 PMhazecrazefind the critical numbers of the function:

**find the critical numbers of the function:**

factor a term out:

I see the 0 and 4, but the solution guide says there is also a critical number at . - Oct 26th 2009, 05:57 PMDebsta
(x-4) is a common factor so take it out the front too to get:

x^(-1/5)(x-4)[(4/5)(x-4)+2x]

Last bracket becomes (4/5)x-16/5+2x Set this =0 and solve to get the third solution.