SOLUTION: sqrt -81 multiply by sqrt-49 Thank you for your help and time.

Algebra ->  Complex Numbers Imaginary Numbers Solvers and Lesson -> SOLUTION: sqrt -81 multiply by sqrt-49 Thank you for your help and time.      Log On


   



Question 46040: sqrt -81 multiply by sqrt-49

Thank you for your help and time.

Answer by fractalier(6550) About Me  (Show Source):
You can put this solution on YOUR website!
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