SOLUTION: Find all solutions of the equation. Solve the equation of quadratic type: (au^2+bu+c=0). x^4-4x^2+3=0

Algebra ->  Complex Numbers Imaginary Numbers Solvers and Lesson -> SOLUTION: Find all solutions of the equation. Solve the equation of quadratic type: (au^2+bu+c=0). x^4-4x^2+3=0      Log On


   

Question 57780This question is from textbook Algebra and Trigonometry
: Find all solutions of the equation. Solve the equation of quadratic type: (au^2+bu+c=0).
x^4-4x^2+3=0 This question is from textbook Algebra and Trigonometry

Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
x^4-4x^2+3=0
(x^2-3)(x^2-1)=0
x=sqrt3 or x=-sqrt3 or x=1 or x=-1
Cheers,
stan H.