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Question 730278: 6.Using complete sentences, explain how to find the zeros of the function f(x) = 2x3 – 9x + 3
Found 2 solutions by lynnlo, fcabanski:
Answer by lynnlo(4176)   (Show Source):
Answer by fcabanski(1391) (Show Source):
You can put this solution on YOUR website! Please supply more information. What tools do you have, or have you learned? I would try the rational roots test to see there are no rational roots, then apply Cardano's Formula to find the roots. Graphing it on a graphing calculator will show you the real roots, and supply you with a visual approximation.
With Cardano's Formula I wouldn't work it out by hand, I would plug the equation into a calculator like at Wolfram Math.
Without knowing the tools available to you, I cannot answer this question completely.
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