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Find all zeros of the polynomial function. Use the Rational Zero​ Theorem, Descartes's Rule of​ Signs,...

Find all zeros of the polynomial function. Use the Rational Zero​ Theorem, Descartes's Rule of​ Signs, and possibly the graph of the polynomial function shown by a graphing utility as an aid in obtaining the first zero or the first root.

f(x)=2x4-17x3+13x2+53x+21

The zeros of the function are?

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milcah answered 2 years ago
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