SOLUTION: Completing the square 1. X^4+64y^4 2. X^4+y^2+5 3. X^4-11x^2y^2+y^4 Please do help me, thanks! =)

Algebra ->  Quadratic Equations and Parabolas  -> Quadratic Equations Lessons  -> Quadratic Equation Lesson -> SOLUTION: Completing the square 1. X^4+64y^4 2. X^4+y^2+5 3. X^4-11x^2y^2+y^4 Please do help me, thanks! =)      Log On


   

Question 892906: Completing the square
1. X^4+64y^4
2. X^4+y^2+5
3. X^4-11x^2y^2+y^4
Please do help me, thanks! =)
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
x%5E4%2B64y%5E4=%28x%5E2-4xy%2B8y%5E2%29%28x%5E2%2B4xy%2B8y%5E2%29
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No further simplification is possible for x%5E4%2By%5E2%2B5
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x%5E4-11x%5E2y%5E2%2By%5E4=%28x%5E2-3xy-y%5E2%29%28x%5E2%2B3xy-y%5E2%29