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Determine the maximum or minimum value of fx equals x squared plus 5x plus 6?
Wiki User
∙ 14y ago
f(x) = x2 + 5x + 6
At a critical point, f'(x) = 0.
f'(x) = 2x + 5 = 0
2x = -5
x = -2.5
f(-2.5) = (-2.5)2 + 5(-2.5) + 6 = (6.25) - (7.5) + (6) = 4.75
Wiki User
∙ 14y ago
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