Check all of the possible first steps in factoring a polynomial with four terms. 1.factor out a GCF 2.factor the difference of cubes 3.factor a sum of cubes 4.factor a difference of squares 5.factor a

Check all of the possible first steps in factoring a polynomial with four terms.

1.factor out a GCF

2.factor the difference of cubes

3.factor a sum of cubes

4.factor a difference of squares

5.factor a perfect-square trinomial

6.factor by grouping