SOLUTION: Factor completely. Show work
y^4 - 8y^2 – 9
i am lost
Algebra.Com
Question 300764: Factor completely. Show work
y^4 - 8y^2 – 9
i am lost
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!
Make a substitution.
Let , then
Now substitute back,
Both can be factored as a difference of two squares,
where
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