Answer:

Step-by-step explanation:
1) Use Square of Difference:

2) Use Multiplication Distributive Property: 

3) Simplify
to 16

4) Simplify
to 81

5) Simplify
to 72a.

Answer:
The numerator is n; Choice B
Step-by-step explanation:
The first step would be to factorize the expression;
6n+4 to become;
2(3n+2)
This term cancels out with the 2 and 3n+2 in the numerator leaving n as the only term.
Answer:
Step-by-step explanation:
.............................. where is the table
491,111 is greater than 409,867