SOLUTION: Solve the equation for complex solutions show all work (r+4)^2=-15

Algebra ->  Finance -> SOLUTION: Solve the equation for complex solutions show all work (r+4)^2=-15      Log On


   

Question 1094599: Solve the equation for complex solutions show all work (r+4)^2=-15
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
(r+4)^2=-15
----
r%2B4+=+%2B%28-15%29+=+i%2Asqrt%2815%29
r+=+-4+%2B+i%2Asqrt%2815%29
----
r%2B4+=+-%28-15%29+=+-i%2Asqrt%2815%29
r+=+-4+-+i%2Asqrt%2815%29