Answer:

Step-by-step explanation:

All we can do here is combine like terms (add those that have the same the same exponent)

Good luck!
<h3>
Answer: 2f^2 </h3>
Step-by-step explanation:
Remove the parentheses: = ff x 2
Apply exponent rule: f^1+^1x2
Add the numbers 1+1=2 = 2f^2
I hope this is right.
The answer is 28.09 g. I hope this helped.