10. If f(x) = x⁴ - 32x² + 18, then the absolute maximum of f(x) in the closed interval [-3, 4.5] is a. 274 b. 18 c. 786 d. -156 e. -189
Added by Sarah L.
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Given f(x) = x⁴ - 32x² + 18, find f'(x): f'(x) = 4x³ - 64x Set f'(x) = 0: 4x(x² - 16) = 0 This gives us critical points x = 0 and x = ±4. Show more…
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