Difference between revisions of "Common factorizations"

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These are a few special common factorizations, please add more:
 
These are a few special common factorizations, please add more:
  
<math>x^2-y^2=(x+y)(x-7)</math>
+
*<math>x^2-y^2=(x+y)(x-y)</math>
  
<math>x^3+y^3=(x+y)(x^2-xy+y^2)</math>
+
*<math>x^3+y^3=(x+y)(x^2-xy+y^2)</math>
  
<math>x^3-y^3=(x-y)(x^2+xy+y^2)</math>
+
*<math>x^3-y^3=(x-y)(x^2+xy+y^2)</math>

Revision as of 12:44, 20 June 2006

These are a few special common factorizations, please add more:

  • $x^2-y^2=(x+y)(x-y)$
  • $x^3+y^3=(x+y)(x^2-xy+y^2)$
  • $x^3-y^3=(x-y)(x^2+xy+y^2)$