SOLUTION: Please help find all the real roots of the equation {{{4x^3+7x^2+8x+9=0}}}

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Question 1093735: Please help find all the real roots of the equation
4x%5E3%2B7x%5E2%2B8x%2B9=0
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
There's only 1.
It's ~ -1.444
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Use Newton's method, or a graphing calculator.