SOLUTION: Solve the following; don't forget to check for extraneous roots CUBERT(2x3 - 24) = -x A.{-2,2} B.CUBERT(24) C.-1 D.2 E.{-2,2,7/2} F.no solution

Algebra ->  Rational-functions -> SOLUTION: Solve the following; don't forget to check for extraneous roots CUBERT(2x3 - 24) = -x A.{-2,2} B.CUBERT(24) C.-1 D.2 E.{-2,2,7/2} F.no solution       Log On


   

Question 954424: Solve the following; don't forget to check for extraneous roots
CUBERT(2x3 - 24) = -x
A.{-2,2}
B.CUBERT(24)
C.-1
D.2
E.{-2,2,7/2}
F.no solution
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
CUBERT(2x3 - 24) = -x
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root%283%2C%282x%5E3+-+24%29%29+=+-x
Cube both sides
2x%5E2+-+24+=+-x%5E3
3x%5E3+=+24
x%5E3+=+8
x = 2
==============
There are 2 complex roots. Do you need those?