alculate the subtraction (8.5−1.8i)−(−1.3+2.7i) . Provide the answer in the form of a+bi .(1 point)

Answer 1

To calculate the subtraction \((8.5−1.8i)−(−1.3+2.7i)\), we can first rewrite it as:

\[ (8.5 - 1.8i) + (1.3 - 2.7i) \]

Now, we will combine the real and imaginary parts separately:

1. Real part: \[ 8.5 + 1.3 = 9.8 \]

2. Imaginary part: \[ -1.8 - 2.7 = -4.5 \]

Putting these together, we have:

\[ 9.8 - 4.5i \]

Thus, the final result in the form \(a + bi\) is:

\[ \boxed{9.8 - 4.5i} \]