SOLUTION: Hi, when you have something, say 3(2 + i) is that equal to 3(2 + 0i) or 3( 2 + 1i)? Thanks in advance.

Algebra ->  Complex Numbers Imaginary Numbers Solvers and Lesson  -> Lesson -> SOLUTION: Hi, when you have something, say 3(2 + i) is that equal to 3(2 + 0i) or 3( 2 + 1i)? Thanks in advance.      Log On


   

Question 2171: Hi,
when you have something, say
3(2 + i) is that equal to 3(2 + 0i) or 3( 2 + 1i)?
Thanks in advance.
Answer by longjonsilver(2297) About Me  (Show Source):
You can put this solution on YOUR website!
no number in front of a letter implies a 1 is there...it means 1xi. If it was a zero...then 0xi would be nothing/zero.
Similarly, having 2 things written together like ab means axb...we are just lazy mathematicians :-).
Jon