Select all that are like terms to 5a5b4.
a5b4
5a4b5
-2a5
-a5b4
9a5b4
2a5b5
6b4

Rewriting the expression: 
We have two terms inside the expression; the  and 

Option one: 
 ⇒ this is a like terms since it also has  and 

Option two:
 ⇒ This expression has  and  which aren't the same with the original expression.

Option three:
 ⇒ This expression only has the term , so it isn't a like term with the original expression.

Option four:
 ⇒ This expression has two terms,  and  which are the same terms with the original expression.

Option five:
 ⇒ This expression has two terms,  and  which are the same with the original expression.

Option six:
 ⇒ This expression has two terms,  and  which aren't exactly the same terms with the original expression.

Option seven:
 ⇒ This expression only has one term, which isn't exactly the same with the original expression.

Answers: Option 1, 4 , and 5