Answer:
it is 4a-9....................
Answer:
0.045454544.....
Step-by-step explanation:
not sure hope it will be true
Answer: 
Step-by-step explanation:
To solve the exercise you must apply the following proccedure:
- Apply the distributive property.
- Keepn on mind that when you multiply two powers with equal base, you must add the exponents.
- Add like terms.
Then:

Answer: square root property
Step-by-step explanation:trust me
Any equation where you have a y and a x