# SOLUTION: Solve 9x^4-21x^2+10 = 0 Give an exact answer, using radicals as needed. I think to start this problem off I need to factor but I'm not sure how to do that on this equation. Pl

Algebra ->  Algebra  -> Quadratic Equations and Parabolas -> SOLUTION: Solve 9x^4-21x^2+10 = 0 Give an exact answer, using radicals as needed. I think to start this problem off I need to factor but I'm not sure how to do that on this equation. Pl      Log On

 Ad: You enter your algebra equation or inequality - Algebrator solves it step-by-step while providing clear explanations. Free on-line demo . Ad: Algebra Solved!™: algebra software solves algebra homework problems with step-by-step help! Ad: Algebrator™ solves your algebra problems and provides step-by-step explanations!

 Quadratics: solvers Practice! Answers archive Lessons Word Problems In Depth

 Question 209135: Solve 9x^4-21x^2+10 = 0 Give an exact answer, using radicals as needed. I think to start this problem off I need to factor but I'm not sure how to do that on this equation. Please help.Answer by scott8148(6628)   (Show Source): You can put this solution on YOUR website!factoring ___ (3x^2 - 5)(3x^2 - 2) = 0 3x^2 - 5 = 0 ___ 3x^2 = 5 ___ x^2 = 5/3 ___ x = ± sqrt(5/3) 3x^2 - 2 = 0 ___ 3x^2 = 2 ___ x^2 = 2/3 ___ x = ± sqrt(2/3)