SOLUTION: Can you please help me solve this equation 10x4 – 30x3 – 50x – 20

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Question 61999: Can you please help me solve this equation 10x4 – 30x3 – 50x – 20
Answer by Edwin McCravy(20054) About Me  (Show Source):
You can put this solution on YOUR website!
Can you please help me solve this equation 
10x4 – 30x3 – 50x – 20 

First of all it isn't an equation. It's an expression.
Equations have equal signs.  Yours doesn't.  If you meant
to solve this equation:

10x4 – 30x4 – 50x – 20 = 0

Then it can be divided through by 10:

x4 - 3x3 - 5x - 2 = 0

It does not factor, so the only practical way to solve 
it is by a graphical calculator.

The two real solutions are approximately:

-.3667762967 and 3.464630077

The two conjugate imaginary solutions are approximately

-.0469268904 ± 1.253589667i

Edwin