Please help menti di this (3+4i)(4-3i)
(3 + 4i)(4 - 3i)3(4 - 3i) + 4i(4 - 3i)3(4) - 3(3i) + 4i(4) - 4i(3i)12 - 9i + 16i - 12i^212 + 7i - 12(-1)12 + 7i + 1212 + 12 + 7i24 + 7i