SOLUTION: Can you please help me solve this? I have to solve for all roots. {{{2x^4-16x=0}}}

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: Can you please help me solve this? I have to solve for all roots. {{{2x^4-16x=0}}}      Log On


   

Question 189608: Can you please help me solve this? I have to solve for all roots. 2x%5E4-16x=0
Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
You can put this solution on YOUR website!
2x%5E4-16x=0
Factor out 2x,
2x%28x%5E3+-+8%29+=+0
2x%28x%5E3+-+8%29+=+0
difference of cubes
2x%28x+-+2%29%28x%5E2+%2B+2x+%2B+4%29+=+0
real roots
x = 0
x = 2