Use the Intermediate Value Theorem to confirm that the given polynomial has at least one zero within the given interval. $f(x) = x^5 - 8x$, between $x = 1$ and $x = 2$ Substitute $x = 1$ and $x = 2$ into the function and simplify. $f(1) = $ $f(2) = $ Interpret the results using the Intermediate Value Theorem. Because $f$ is a polynomial function and since $f(1)$ is --Select-- and $f(2)$ is --Select--, there is at least one real zero between $x = 1$ and $x = 2.$
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