Factoring Polynomials

Steps :
 (1) Factor out the GCF of all the terms.
 (2) If the polynomial has :
  - two terms , check to see if it is a difference of cubes, a sum of cubes, or a difference of cubes;
  - three terms , guess (. . . and check with F O I L) or use grouping ;
  - four or more terms , try grouping .
 (3) Be persistent and careful!

Factor completely using real number coefficients.

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