SOLUTION: Solve each equation in the complex number system. 1. x^4 = 16 2. x^4 + 13x^2 + 36 = 0

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Question 1207603: Solve each equation in the complex number system.

1. x^4 = 16

2. x^4 + 13x^2 + 36 = 0

Found 2 solutions by MathLover1, greenestamps:
Answer by MathLover1(20849)   (Show Source): You can put this solution on YOUR website!

1.


=>or

2.






solutions:



or
and



or

Answer by greenestamps(13200)   (Show Source): You can put this solution on YOUR website!


Both equations are polynomials of degree 4; each has 4 solutions. For the first problem, the other tutor found two solutions "by inspection", which does not provide a complete solution.

1. x^4=16

For all polynomial equations of degree greater than 1, write the equation with "0" on one side and solve by factoring if possible.





Solutions: 2, -2, 2i, -2i

2. x^4+13x^2+36=0





Solutions: 2i, -2i, 3i, -3i


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