Answer:
8
Step-by-step explanation:
(10-4)+20/20
6+20/10
6+2
8
Answer:
15
Step-by-step explanation:
8.25 minus 7.80 is 0.45 45 divided by 3 is 15 so the answer is 15
Answer:
a. 
Step-by-step explanation:
Given that

Now
if one is added i.e.

Now let us assume the other polynomial be x
So,


Answer:

Step-by-step explanation:
I'm going to write it so I can see it better:

You can use the difference of squares formula:

Answer:
i think 42
Step-by-step explanation: