SOLUTION: Hi. I need some help with the following problem. find all x that will make f(x)=0 f(x)=x^4-26x^2+25 thanks!

SOLUTION: Hi. I need some help with the following problem. find all x that will make f(x)=0 f(x)=x^4-26x^2+25 thanks!

Algebra.Com

Question 185111: Hi.
I need some help with the following problem.
find all x that will make f(x)=0
f(x)=x^4-26x^2+25
thanks!
Answer by solver91311(24713) (Show Source): You can put this solution on YOUR website!

Let

then:

So for f(u) = 0:

Which factors:

Hence,

or

But

so:

or

John

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