SOLUTION: Use the rational zero theorem descartes's rule of signs, and possibly the graph of the paolynomial function shown by a graphing utlity as an aid in obtaining the first zero or the

Algebra ->  Linear-equations -> SOLUTION: Use the rational zero theorem descartes's rule of signs, and possibly the graph of the paolynomial function shown by a graphing utlity as an aid in obtaining the first zero or the       Log On


   

Question 327168: Use the rational zero theorem descartes's rule of signs, and possibly the graph of the paolynomial function shown by a graphing utlity as an aid in obtaining the first zero or the firs root f(x)= x^3+12x^2+21x+10
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
graph%28300%2C300%2C-12%2C2%2C-10%2C100%2Cx%5E3%2B12x%5E2%2B21x%2B10%29
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Here's a graphing utility.
Looks like you should check x=-1 and x=-10 to see if they're zeros.