SOLUTION: The number of real roots of the equation 2x4 + 5x2 + 3 = 0 is

Algebra ->  Quadratic Equations and Parabolas  -> Quadratic Equations Lessons  -> Quadratic Equation Lesson -> SOLUTION: The number of real roots of the equation 2x4 + 5x2 + 3 = 0 is      Log On


   

Question 140895: The number of real roots of the equation 2x4 + 5x2 + 3 = 0 is
Answer by scott8148(6628) About Me  (Show Source):
You can put this solution on YOUR website!
factoring __ (2x^2+3)(x^2+1)=0

2x^2+3=0

x^2+1=0

the discriminants of both quadratics are negative; which means no real roots