SOLUTION: factor completely and find all roots (solutions) for x^3 + 6x^2 +3x -10 = 0
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Question 753818: factor completely and find all roots (solutions) for x^3 + 6x^2 +3x -10 = 0
Answer by lwsshak3(11628) (Show Source): You can put this solution on YOUR website!
factor completely and find all roots (solutions) for
x^3 + 6x^2 +3x -10 = 0
***
use rational roots theorem to solve:
....0...|.....1......6.......3......-10....
....1...|.....1......7.......10......0...(1 is a root)
f(x)=(x-1)(x^2+7x+10)
f(x)=(x-1)(x+2)(x+5)
roots are: 1, -2, -5
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