anonymous
  • anonymous
Calculus help Find the relative extrema of the function f(x) = x^4 - 32x^2 + 3 I've worked this out on the calculator, but I am unsure how to do on pen and paper. I tried completing the square, but it doesn't seem to come out right. Relative maximum at (0, 3); relative minima at (4, -253), (-4, -253)
Calculus1
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
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Vocaloid
  • Vocaloid
take the derivative
anonymous
  • anonymous
3x^3-64x This doesn't factor evenly
anonymous
  • anonymous
\[f \prime \left( x \right)=4x^3-64x\] \[f \prime \left( x \right)=0~gives~4x^3-64x=0\] 4x(x^2-16)=0 x=0,-4,4

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anonymous
  • anonymous
find \[f \prime \prime \left( x \right) ~all~three~ points~for~maxima~and~minima.\]
anonymous
  • anonymous
Wow, I missed that one, Thanks
Jhannybean
  • Jhannybean
nope this helps too.
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Jhannybean
  • Jhannybean
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