Question

- (-a-b) + (-c-d) даю 10 баллов​

Answer 1

$- (-a-b) + (-c-d)=a+b-c-d$

Answer 2

Ответ:

а + b - c - d

Пошаговое объяснение:

Если перед скобками стоит минус - все знаки меняются. Плюс - нет

Answer 3

Sure! Let's simplify the expression:

-(-a-b) + (-c-d)

When you have a double negative, it becomes positive, so -(-a-b) is equivalent to (a + b).

Now the expression becomes:

(a + b) + (-c - d)

To add two negative numbers, you can add their absolute values and put a negative sign in front of the result:

(-c - d) = -(c + d)

Now the expression becomes:

(a + b) - (c + d)

There are no like terms to combine further, so the final simplified expression is:

a + b - c - d

I hope this helps! If you have any other questions or need further clarification, feel free to ask.