Answer:
(4x -3yi) (4x+3yi)
Step-by-step explanation:
We have a^2 + b^2
Over the complex number, this is equal to
(a-bi) (a+bi)
true
3 + (5 + 7) = (3 + 5) + 7
3 + (12) = (8) + 7
15 = 15
