SOLUTION: Find all real and imaginary solutions to the equation. b^4+13b^2+36=0

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Question 78203: Find all real and imaginary solutions to the equation.
b^4+13b^2+36=0
Answer by checkley75(3666) About Me  (Show Source):
You can put this solution on YOUR website!
B^4+13B^2+36=0
(B^2+9)(B^2+4)=0
B^2=-9
B=+-3i ANSWER.
B^2+4=0
B^2=-4
B=+-2i ANSWER