Answer:

Step-by-step explanation:
Hello!
A trinomial is a expression consisting of three different terms
To turn this into a trinomial we multiply everything to each other
<u> 3x </u>
3x * x = 
3x * 10 = 30x
<u> 8 </u>
8 * x = 8x
8 * 10 = 80
Now we put them all together in an equation

Combine like terms

The answer is 
Hope this helps!
Answer:
The correct answer is C) 10z(x − 2y)
Step-by-step explanation:
To find this, we look for the greatest common factor of those two numbers. Each can be divided by 10 and each have a z. So we divide each term by 10z and put that on the outside of the parenthesis.
You have to subtract the degrees like in this picture:
Https://www.youtube.com/watch?v=JnCYomYzJSw
this a youtube video that helped me when i needed to do it