SOLUTION: Find all solutions, real and complex of the equation: a. x^4+x^3+x^2+x=0 b. x^3+3x^2+9x+27=0

Algebra ->  Complex Numbers Imaginary Numbers Solvers and Lesson -> SOLUTION: Find all solutions, real and complex of the equation: a. x^4+x^3+x^2+x=0 b. x^3+3x^2+9x+27=0       Log On


   

Question 323338: Find all solutions, real and complex of the equation:
a. x^4+x^3+x^2+x=0
b. x^3+3x^2+9x+27=0
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
Find all solutions, real and complex of the equation:
a. x^4+x^3+x^2+x=0
x=0 is obvious.
Then try +1 and -1
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b. x^3+3x^2+9x+27=0
(x+3)^3 = 0