Question: In Problems 7984, use the Intermediate Value Theorem to show that each polynomial function has a real zero in the given interval. f (x) =

In Problems 79–84, use the Intermediate Value Theorem to show that each polynomial function has a real zero in the given interval.

f (x) = x5 − x4 + 7x3 − 7x2 − 18x + 18; [1.4, 1.5]

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