Answer:
Step-by-step explanation:
An expression is said to be like, if there are only constants term in it, otherwise degree of variables in two distinct terms are same.Starting from option (1)
1. As, 4 and -12 are like terms, they are combined to get -8.
2. As, 2 f( 2 f g) and are like terms, so they can be combined to get
.3. as,there are no like terms, so, we cannot simplify this expression.→→→Correct Option,This expressions Cannot be simplified by combining like terms
4. As, are like terms.They can be combined to get a unique term.
