Answer:
4.

5.

Explanation:
4.
First break it into groups:

Then factor out x from the first parentheses and 5y from the second one:

Next, factor out x + y from the equation. This gives you:

5.
Break it into groups like the last one:

Then, factor out m from the first parentheses and -4 from the second parentheses:

Lastly, factor out 2m + 3 from the equation:
