SOLUTION: if 3i(2+5i)=x+6i, then x =? Please explain your answer

Algebra ->  Complex Numbers Imaginary Numbers Solvers and Lesson -> SOLUTION: if 3i(2+5i)=x+6i, then x =? Please explain your answer      Log On


   



Question 328948: if 3i(2+5i)=x+6i, then x =? Please explain your answer
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
Distribute the 3i on the left hand side.
6i%2B30i%5E2=x%2B6i
i%5E2=-1
x=-30