Write the expression in standard form. five divided by quantity three minus fifteen i.

Standard form is a+bi where a and b are real numbers
remeber that i²=-1

ok


we got to get the i out of the denomenator
remember the differnce of 2 perfect squares where (a-b)(a+b)=a²-b²

so multiply the whole thing by
we get


in standard form, it is

Just a second zzz