Answer:
Step-by-step explanation:
OH this is simple. You can only add square rooted things with alike bases.[tex]5\sqrt{2}[/tex] and [tex]5\sqrt{2}[/tex] both have five, but 8 and 7 are not the same, and when you draw the equation out by adding them together and solving, versus solving separately and adding at the end, you will get a different answer. with the 5 and 5, you will get the same answer either way
