SOLUTION: Hello how do I solve X^4-X^3+2X^2-4x-8=0 Using the real number system? Please help me soon thank you!!

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Question 1013518: Hello how do I solve
X^4-X^3+2X^2-4x-8=0
Using the real number system?
Please help me soon thank you!!
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
how do I solve
X^4-X^3+2X^2-4x-8=0
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Step 1, try the integer factors of 8.
1, 2, 4 & 8 plus and minus.
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f(x) = X^4-X^3+2X^2-4x-8
Check f(1), f(-1), f(2), f(-2), etc
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If you find a zero z, divide by (x-z) and continue.