Answer:
So if they meant then the answer is:
.
The choice this corresponds to is A.
Step-by-step explanation:
The sum of cubes formula for factoring or expanding:
You have I'm assuming they meant:
.
Compare to .
You should see in place of you have .
You should also see in place of you have .
Let's check it for fun.
So we are going to use the distributive property.
We are going to distribute all the terms in the first ( ) to all the terms in the second ( ).
+
+
Combine like terms:
Simplify the grouping of like terms:
0 times anything is 0: