SOLUTION: ``Locate the zeroes of each polynomial function. a. (x)= x³-4x²-9x+3 b. (x)= 2x³-x-4

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Question 1188732: ``Locate the zeroes of each polynomial function.
a. (x)= x³-4x²-9x+3
b. (x)= 2x³-x-4
Answer by Boreal(15235) About Me  (Show Source):
You can put this solution on YOUR website!
can graph, try factoring, or try synthetic division, using -1,1,-3-3 as possible divisors. It does not factor, and the divisors fail to give factors.
x=-1.827, 0.297, 5.530
graph%28300%2C300%2C-5%2C10%2C-10%2C10%2Cx%5E3-4x%5E2-9x%2B3%29
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2x^3-x-4
x=1.392
graph%28300%2C300%2C-3%2C3%2C-5%2C5%2C2x%5E3-x-4%29