Compute (2+3i)+(4−i)(2 + 3i) + (4 - i)(2+3i)+(4−i).
6+2i6 + 2i6+2i
6−2i6 - 2i6−2i
2+4i2 + 4i2+4i
−2−4i-2 - 4i−2−4i