SOLUTION: steps to solve x^4 + 2x^2-15=0

Question 628443: steps to solve x^4 + 2x^2-15=0
Found 2 solutions by lwsshak3, stanbon:
Answer by lwsshak3(11628) (Show Source): You can put this solution on YOUR website!
steps to solve x^4 + 2x^2-15=0
factor
(x^2+5)(x^2-3)=0
x^2+5=0
x^2=-5
x=�√-5
x=�(√5) i
or
x^2-3=0
x^2=3
x=�√3
two real roots: �√3
two imaginary or non-real roots: �(√5) i
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
steps to solve x^4 + 2x^2-15=0
-----
Factor:
(x^2+5)(x^2-3) = 0
---
x^2 = -5 or x^2 = 3
---
Real-Number solutions:
x = sqrt(3) or x = -sqrt(3)
============================
Cheers,
Stan H.
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