Posted by Shin on Tuesday, May 7, 2013 at 1:58am.
If f(x) is a polynomial with real coefficients such that f(7+5i) = 39 + 13i, then f(7−5i) = a + bi. What is the value of a+b?

Math (Algebra)  sayan chaudhuri, Thursday, May 9, 2013 at 1:18am
i would just give you the hint....f(x)=x^214x+113.......now put the value x=75i.....you would get yourself...