Question

factor:

147a^2 - 507

Answer 1

3(13 + 7a)(-13 + 7a)?

Answer 2

yes

Answer 3

Thanks!

Answer 4

Although.....writing the variable term first and the constant term next is convention.
3(7a+13)(7a-13).

Your order can throw people off. It is right, but just not conventional.

Then again, you can be unconventional. Lot of us are. :)