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Find all critical numbers by hand. If available, use graphing technology to determine whether the critical number represents a local maximum, local minimum, or neither. f(x) = x^4 - 3x^3 + 2

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@rajathsbhat can u help?
not too sure about this :\

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Other answers:

@electrokid can u help?
are you allowed to use calculus for this? or algebra 2?
take derivative
okay the derivative is x^2(4x - 9)
or 4x^3 - 9x^2
set that equal to 0 and solve for x
i get 0 and 9/4
that's your criticle number
okay so thats it?
how do i determine whether it is local maximum, minimum or either
1)Plug in Crit point into F''(t); positive number mean min, negative number mean max
okay thanks

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