SOLUTION: 5xsquared-x to the 4th +4=0

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Question 102226: 5xsquared-x to the 4th +4=0
Answer by edjones(8007) About Me  (Show Source):
You can put this solution on YOUR website!
5x^2-x^4+4=0
x^4-5x^2-4=0 multiply each side times -1.
x= +-2.3878...
Ed
graph%28500%2C500%2C-5%2C5%2C-12%2C8%2Cx%5E4-5x%5E2-4%29