Post a New Question

algebra

posted by on .

how do you factor a^2-100 completely?

  • algebra - ,

    just use the old (a-b)(a+b) = a^2 - b^2

    a^2 - 100 = (a+10)(a-10)

    whew. At first I thought I'd read a^100 - 1. That would have had a few more factors!

Answer This Question

First Name:
School Subject:
Answer:

Related Questions

More Related Questions

Post a New Question