SOLUTION: The rational root of the equation 2x³-x²-4x+2 =0 is

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Question 774708: The rational root of the equation 2x³-x²-4x+2 =0 is
Found 2 solutions by solver91311, tommyt3rd:
Answer by solver91311(24713) About Me  (Show Source):
You can put this solution on YOUR website!


If a rational root exists for , then it is of the form where is an integer factor of and is an integer factor of

So the possible rational roots of your equation are:



Test each of the six possibilities to determine which, if any, of the possible rational roots is indeed a root.

John

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My calculator said it, I believe it, that settles it
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Answer by tommyt3rd(5050) About Me  (Show Source):
You can put this solution on YOUR website!
2x³-x²-4x+2=0
x%5E2%282x-1%29-2%282x-1%29=0
%28x%5E2-2%29%282x-1%29=0

from which we need:
2x-1=0
x=1%2F2