find the maximum and minimum value at the function x2-7.5x2+20x3-20x=5

find the maximum and minimum value at the function x2-7.5x2+20x3-20x=5
in Pre-Algebra Answers by Level 1 User (120 points)

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1 Answer

me assume that stuf shood be

20x^3 +(x^2 -7.5x^2) -20x -5=0

or y=20x^3 -6.5x^2 -20x -5

slope=dy/dx=60x^2 -13x-20

yuze quadratik equashun tu get zeroes...slope=0=min or max

x=0.6957594 & -0.4790928
by

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