SOLUTION: Find a real or imaginary solution 80. w^2=-225

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Question 170964: Find a real or imaginary solution

80. w^2=-225
Answer by Mathtut(3670) About Me  (Show Source):
You can put this solution on YOUR website!
w%5E2=-225take the sqrt of each sidesqrt%28w%5E2%29=sqrt%28225%29sqrt%28-1%29
:
w=15i remember i=sqrt%28-1%29