We have been given an expression
. We are asked to factor the given expression by grouping.
First of all, we will make two groups of our expression as:

Now we will factor of greatest common factor from each group.


Now we will factor out common terms
as:

Therefore, the factorized form of our given expression would be
.
Answer:-5
Step-by-step explanation:
The discount price will be the same either way. (The commutative property)
20 percent of $89.00= 17.80$
$89.00 - ($5.00 x $17.80) = $66.20
$89.00 - ($17.80 x $5.00) = $66.20
Answer:
c.
Step-by-step explanation:
All of the things are correct with this one.
Answer:

Step-by-step explanation:
Given:
The expression to simplify is given as:

In order to simplify this, we have to use the law of indices.
1. 
So, 
Substitute this value in the above expression. This gives,

Now, we use another law of indices.
2. 
So, 
Substitute these values in the above expression. This gives,

Finally, we further simplify it using the law 
So, 
Therefore, the given expression is simplified as:
