Find all roots of the polynomial equation. Use the Rational Zero Theorem, Descartes's Rule of Signs, and possibly the graph of

Question

Find all roots of the polynomial equation. 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 root.
4x^4-14x³ +36x²-84x + 72 = 0
The solution set of the equation 4x4-14x3 +36x²-84x + 72=0 is.

Kunduz · Accepted Answer

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