SOLUTION: Find all real and imaganiary solutions to each equation b^4 + 13b^2 + 36 = 0 Thanks for the help !

Question 205058: Find all real and imaganiary solutions to each equation
b^4 + 13b^2 + 36 = 0
Thanks for the help !
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
Find all real and imaginary solutions to each equation
b^4 + 13b^2 + 36 = 0
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Factor to get:
(b^2+9)(b^2+4) = 0
Factor to get:
(b+3i)(b-3i)(b+2i)(b-2i) = 0
a = -3i or 3i or -2i or 2i
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Cheers,
Stan H.
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