SOLUTION: PLEASE HELP!!! Solve -x^4+200=102x^2. I have to show my work and I don't understand how to do this. It is from a worksheet. Thanks

SOLUTION: PLEASE HELP!!! Solve -x^4+200=102x^2. I have to show my work and I don't understand how to do this. It is from a worksheet. Thanks

Algebra.Com

Question 166175: PLEASE HELP!!!
Solve -x^4+200=102x^2.
I have to show my work and I don't understand how to do this. It is from a worksheet.
Thanks
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!

Looks kind of like a quadratic equation.
Use a substitution.

Now solve using the quadratic formula,

Let's look at both solutions separately,

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