Answer: 
Work Shown:
I'm assuming your teacher wants you to factor as much as possible.
In the last step, I used the rule that 
We cannot factor any further. If the first term was 
instead of 
, then we could use the difference of squares factoring rule.
Answer:
Step-by-step explanation:
4^(-3) = 1/4^3 = 1/(4*4*4) = 1/64
which can also be written as 1/(2^6)
depending on your answer options.
10xBx15+11xB is that what you are needing for the answer because you didn't really say what you where looking for.
Answer:
n=-1
Step-by-step explanation:
7n + 28 = 21
subtract 28 on both sides
7n= -7
divide by seven on both sides
n= -1
