Question

Add the complex expressions, and simplify (6.9 – 8i) + (-8.1 – 2.3i)

Answer 1

Add the imaginary with the imaginary, add the real with the real.
-1.2-10.3i

Answer 2

adding complex expressions is like collecting like terms. u add the imaginary with the imaginary and real with the real. giving: -1.2 -10.3i