Answer:
The top one is 1
Step-by-step explanation:
In the question, the given expression is
And we have to find the equivalent expression to the given expression .
First we remove the parenthesis
Now we combine the like terms, and here like terms are z and z, therefore on combining , we will get
And that's the required equivalent expression .
Answer:
Step-by-step explanation:
b is the answer
Step-by-step explanation: