Answer:
Step-by-step explanation:
in complex number land there are two distict parts real.. the first number and imaginary.. the second number with the i
if your problem really only has a 7 and an i in it.. then it looks like below
7 * i = 7i
but..I suspect you just left out a bit of the problem.. repost .. i'll answer it again if the problem is different that what you posted already :)
To factor an expression:
1: find a common factor
2: divide a common factor by a term
3: divide any other terms after putting in parenthesis
4: simplify
Sorry if I just confused you. >///< Ty for reading.