SOLUTION: For i= square root -1, if 3i(2+5i) = x+6i, then x = ?

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Question 323154: For i= square root -1, if 3i(2+5i) = x+6i, then x = ?
Answer by QH(50) About Me  (Show Source):
You can put this solution on YOUR website!
3i%282%2B5i%29=x%2B6i First distribute 3i to remove parenthesis
6i%2B15i%5E2=x%2B6i because i=sqrt%28-1%29%2C+%7B%7B%7Bi%5E2=-1 replace i%5E2 with -1
6i%2B15%28-1%29=x%2B6i now solve for x
6i-6i-15=x
-15=x