swin2013
Use the derivative of the function y  f(x) to find the points at which f has a
a) local max
b) local min
c) point of inflection



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swin2013
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y'= (x1)^2 (x2)

petewe
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equate the derivative to 0 to find any max or min
equate the second derivative to 0 to find any poi

swin2013
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ohhh ok thanks!@

swin2013
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so it's (x1)^2 (x2) = 0
x = 2, 0 and does (x1)^2 has an x value?

petewe
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of course it does

swin2013
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oh so it's 1 and 1 also?

petewe
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(x1)^2 = 0
solve for x

swin2013
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(x1)(x1)(x2) = 0 correct? to find max and mins?

swin2013
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since (x1)^2 is the same as (x1) (x1)

petewe
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^ no
(x^2 1) = (x1)(x+1)

swin2013
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how is it x^2  1? if the squared is outside the parenthesis?? it's not (x^21) because it says (x1)^2? isn't that different? :0

petewe
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what i'm saying is (x1)^2 =/= (x1)(x+1)

swin2013
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does not equal?