Question
Find all real and imaginary solutions to equation.
b^4+13b^2+36 = 0
b^4+13b^2+36 = 0
Answers
Marth
Factor into (b^2 + 9)(b^2 + 4)=0
b^2 = -9
b = +/- 3i
b^2 = -4
b = +/- 2i
b^2 = -9
b = +/- 3i
b^2 = -4
b = +/- 2i