Here's the question you clicked on:
shjej5835
.
Take out all visible common factors, and then look at what's left.
3k^7(k-4) final answer
glad i can help you soo much :)
factor out 3k^6 you will get 3k^6(k^2-4)=3k^6(k-2)(k+2)
Good, just a small typo: should read: 3k^6(k^2-4) What's left is difference of two squares, use (a^2-b^2)=(a+b)(a-b) to complete the factorization.