SOLUTION: even root property , find real solutions ... w^2+49=0 ; find imaginary solution.. w^2=-225; sqrt(16^n)

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Question 296252: even root property , find real solutions ... w^2+49=0 ; find imaginary solution.. w^2=-225; sqrt(16^n)
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
even root property , find real solutions ... w^2+49=0 ; find imaginary solution.. w^2=-225; sqrt(16^n)
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w^2+49 = 0
(w+7i)(w-7i) = 0
w = -7i or w = 7i
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w^2 = -225
w^2 + 225 = 0
(w+15i)(w-15i) = 0
w = -15i or w = 15i
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sqrt(16^n) = sqrt(4^(2n))
= 4^n
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Cheers,
Stan H.
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