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  • 4 years ago

What is the inflection point of f(x)=x^2(x^2-4) ?

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  1. pre-algebra
    • 4 years ago
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    \[f(x)=x^2(x^2-4)=x^4-4x^2\]\[f'(x)=4x^3-8x\]\[f''(x)=12x^2-8\]\[12x^2-8=0\implies x=\pm\sqrt{\frac{2}{3}}\]

  2. pre-algebra
    • 4 years ago
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    Then I can't do much.

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