(6+2i)-(5+3i) (6+2i)*(5+3i)
1) 6 + 2i - 5 - 3i = 1 - i 2) 6*5 + 5*2i + 6*3i + 2*3i² = 30 + 10i + 18i - 6 = 24 + 28i