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Find all solutions of this equation by factoring. x^4-20x^2+64=0

Find all solutions of this equation by factoring. x^4-20x^2+64=0
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Find all solutions of this equation by factoring.
x^4-20x^2+64=0

User Heapzero
by
8.7k points

1 Answer

4 votes


Rewrite \: x¹ \: as (x²)²


(x²)² - 20x² + 64 = 0


Let \: u = ² Substitute \: u \: for \: all \: occurrences \: of \: x²


u² - 20u +64 = 0

User Ghoul
by
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