The function f(x) = x^2 (x^2 − 2x − 36) is defined on all real numbers....

The function f(x) = x^2 (x^2 − 2x − 36) is defined on all real numbers. On what subset of the real numbers is f(x) concave down?

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This question is solved using the concept of increasing and decreasing slope:

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milcah answered 1 year ago

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