SOLUTION: sqrt -81 multiply by sqrt-49 Thank you for your help and time.
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Question 46040
:
sqrt -81 multiply by sqrt-49
Thank you for your help and time.
Answer by
fractalier(6550)
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Here you must pull out the i's first...so you get
sqrt -81 multiply by sqrt-49 =
i*sqrt(81) * i*sqrt(49) =
9i * 7i =
-63