Question

(3 + 2i) + (-5 + 7i) Add or subtract the complex numbers as needed and write your answer in the simplest a+bi form.

Answer 1

-2 + 9i

Explanation:

( 3 + 2i ) + ( -5 + 7i )

→ Remove brackets

3 + 2i +- 5 + 7i

→ Remember that the negative cancels out the plus

3 + 2i - 5 + 7i

→ Add the whole numbers together

-2 + 2i + 7i

→ Add the i values together

-2 + 9i

Answer 2

`\huge\boxed{-2 + 9i}`

Explanation:

`\sf (3+2i)+(-5+7i)\\Expanding \ Parenthsis\\3+2i -5 +7i\\Combining \ like \ terms\\3-5 + 2i+7i\\-2 + 9i`

This is the required answer in the form a + b i