Simplify.

(2-5i)-(3+4i)

( 2 - 5i ) - ( 3 + 4i ) =

2 - 5i - 3 - 4i =

- 1 - 9i = - ( 1 + 9i )

thankss (:

To simplify the given expression (2-5i)-(3+4i), we need to combine like terms.

First, let's distribute the negative sign to the terms inside the parentheses:

2 - 5i - 3 - 4i

Next, let's group the real numbers (terms without "i") together and the complex numbers (terms with "i") together:

(2 - 3) + (-5i - 4i)

Simplifying the real numbers: 2 - 3 = -1

Simplifying the complex numbers: -5i - 4i = -9i

Therefore, the simplified form of (2-5i)-(3+4i) is -1 - 9i.