SOLUTION: Question: x^4-6x^2+5=0

Question 30350: Question:
x^4-6x^2+5=0

Answer by mukhopadhyay(490) (Show Source): You can put this solution on YOUR website!
Let x^2 = y
So, y^2 - 6y + 5 = 0
=> (y-5)(y-1) = 0
=> y = 5 or y = 1
Substituting y = x^2,
x^2 = 1 or x^2 = 5
=> x = +1 or x = -1 or x = sqrt(5) or x = - sqrt(5)
RELATED QUESTIONS
x^2+6x-4=0 (answered by AnlytcPhil)

Please help... (answered by checkley71)

x^2-6x+5>0 (answered by HyperBrain)

x^2+6x+5=0 (answered by jim_thompson5910)

x^2-6x+5=0 (answered by jim_thompson5910)

x^2-6x+5=0 (answered by tw23279)

question 1 find the value(s) of x for which ((x^3-7x^2+6x)/(x^5+4x^4-3))=0 question 2... (answered by Fombitz)

I HAVE A QUESTION ON ((( X^2+6X+8=0... (answered by jim_thompson5910)

Solve:... (answered by Boreal)