Answer: 14 + 4i
Step-by-step explanation:
(7 + 4i) + (9 + 5i) - (2 + 5i)
Group the real part and the imaginary part of the complex number
(a + bi) ± (c + di) = (a ± c) + (b ± d)i
(7 + 9 - 2) + (4 + 5 - 5)i
7+9-2=14 and 4+5-5=4
Therefore, (7+4i)+(9+5i)-(2+5i) is equal to 14 + 4i
