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Mathematics 20 Online
OpenStudy (anonymous):

find the relative maximum and minimum of the equation 2x^3-3x^2-36x+2?

OpenStudy (bahrom7893):

take the derivative: y'=6x^2-6x-36

OpenStudy (bahrom7893):

set it equal to 0 since it's defined everywhere

OpenStudy (bahrom7893):

x^2-x-6=0

OpenStudy (bahrom7893):

solve for x

OpenStudy (bahrom7893):

then take the second derivative.. and plug in the x values that u get to see if it's a max or a min

OpenStudy (bahrom7893):

if second derivative is positive, then ur x value is a min, if negative, it's a max

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