R RACHEL New member Sep 16, 2010 #1 If the expression (a+3i)(-2+3i) is a real number, find the value of the real number "a". " i " is an imaginary number. the answer is 2 can you show me how to do it? Thanks for your help!!
If the expression (a+3i)(-2+3i) is a real number, find the value of the real number "a". " i " is an imaginary number. the answer is 2 can you show me how to do it? Thanks for your help!!
