I agree with the guy above me :D
Hmmm ok well your doing well with the posting part I know you said you know how to do it but I'm going to try to lay it all out for you.
To post you hit question, ask your question and wait for a response
IF someone doesn't help you you will probably need to wait a little while for someone who can, to answer the question.
Sometimes questions won't get answered, due to many other people posting and the people who answer my getting to the question.
If you want to answer be sure to scroll down the list they give you and once you know the answer or would like to help hit answer!
Let me know if you have any questions
Answer:
9(x² + 5y⁴) (x² - 5y⁴)
Step-by-step explanation:
9x⁴ - 225y⁸
factor out a 9
9(x⁴ - 25y⁸)
factor (x⁴ - 25y⁸)
(x⁴ - 25y⁸)
x² • x² = x⁴
5y⁴ • -5y⁴ = -25y⁸
(x² + 5y⁴) (x² - 5y⁴)
↓
9(x² + 5y⁴) (x² - 5y⁴)
