SOLUTION: Find the rational solution of x^3+3x^2+x+5=0 show your use of the rational zero theorem

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Question 891513: Find the rational solution of x^3+3x^2+x+5=0 show your use of the rational zero theorem
Answer by lwsshak3(11628) About Me  (Show Source):
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Find the rational solution of x^3+3x^2+x+5=0 show your use of the rational zero theorem
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...0...|...1......3......1......5
...1...|...1......4......5......10 ( 1 is upper bound(all numbers>0))
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..-1...|..1......2....-1......6
..-2...|..1......1....-1......7
..-3...|..1......0.....1.......2
..-4...|..1.....-1....5....-15 (-4 is lower bound(numbers alternate in sign)(root is between -3 and -4(change in sign of last number))