Question

Please Help
I think the answer is 2ab+2a but I'm not for sure.
(-4ab+2a-4)-(-6ab-4)

Answer 1

Correct.

Answer 2

Thank You!

Answer 3

Try to expand them taking care of the signs. You will get the answers.

Answer 4

\((-4ab+2a-4)-(-6ab-4)=\)

The first parentheses are unnecessary, so you can just drop them.

\(=-4ab+2a-4-(-6ab-4)\)

Since there is a negative sign outside the second set of parentheses, it is as if a -1 were there, so you need to distribute -1 which changes all the signs inside the parentheses.

\(=-4ab+2a-4 +6ab +4)\)

Now you combine like terms.

\(=\color{red}{-4ab +6ab} \color{green}{+ 2a} \color{blue}{ -4 +4})\)

\(=2ab+2a\)

Answer 5

You're welcome.