Answer:
A and B
27:9 divided by 3 on both sides,
9:3 (B)
27:9 divided by 9 on both sides,
3:1 (A)
Answer:
first one is the right one
Step-by-step explanation:
The new value is-3 because the difference of 3 is -3 (always the opposite
A.
We can rewrite the squared in two ways.
The first way is to rewrite it as a multiplication, this is:

The second way to rewrite the squared is by using the formula for this kind of product:

B.
Once again we can find the final result using each of the options given in part A, for the first option we have:

For the second option we have:

No matter which way we choose the answer for the squared is:
Answer:
(x+9)(x-9)
Step-by-step explanation: