
Rewrite the term 

Expand each term so we have

Use the fact that 

Use the fact that
when a is an even number

Simplify


Let me know if you need any clarifications, thanks!
Answer:
213 1/3
Step-by-step explanation:
Because I know where you got this question from.
A polynomial with no odd-degree terms will have a graph with even symmetry. The one here that qualifies is ...
c. 7x^4 +9x^2 -12
Answer:
R0, 90 degrees
Step-by-step explanation:
:)
Answer:
13\left(13a^{2}-4a-5b-15b^{2}\right)
Step-by-step explanation:
factored 13