SOLUTION: Solve 4x^3+x^2-4x-1=0

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Question 923497: Solve
4x^3+x^2-4x-1=0
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
Factor to solve for x


4x%5E3%2Bx%5E2-4x-1=0


%284x%5E3%2Bx%5E2%29%2B%28-4x-1%29=0


x%5E2%284x%2B1%29%2B%28-4x-1%29=0


x%5E2%284x%2B1%29-1%284x%2B1%29=0


%28x%5E2-1%29%284x%2B1%29=0


%28x-1%29%28x%2B1%29%284x%2B1%29=0


x-1=0 or x%2B1=0 or 4x%2B1=0


x=1 or x=-1 or x=-1%2F4


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The three roots are:x=1 or x=-1 or x=-1%2F4


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Let me know if that helps or not. Thanks.

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