SOLUTION: w^2=-225

Algebra ->  Square-cubic-other-roots -> SOLUTION: w^2=-225      Log On


   



Question 312878: w^2=-225
Answer by rapaljer(4671) About Me  (Show Source):
You can put this solution on YOUR website!
First of all, are you allowed to have complex (imaginary!) solutions for this equation? If you are restricted to the real numbers, then there is NO SOLUTION, since a real number squared will never equal a negative.

However, if imaginary numbers are allowed, then
w%5E2=-225
w=0%2B-sqrt%28-225%29

Since 15^2=225,
w=15i or w=+-15i

Dr. Robert J. Rapalje, Retired
Seminole State College of Florida
Altamonte Springs Campus