Higher Concepts of Mathematics IMAGINARY AND COMPLEX NUMBERS Similarly, 25 5i 4         2i and 25 4         10. Example 1: Multiply and . 2 32 Solution: ( 2  ) ( 32   )      ( 2 i) ( 32  i) (2) (32)  i² 64   (  1) 8 (  1) 8 Example 2: Divide by . 48 3 Solution: Rev. 0 Page 13 MA-05