Factoring a Difference of Two Squares with Help
View the Lesson | MATHguide homepage Updated June 22nd, 2023


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Factor this quadratic by using the product table to the right.

x2 - 81

  1. Choose the product that has the correct sum.
  2. Fill in the blanks below using the pair of numbers you choose.
-81
-811
-273
-99
-327
-181
(x + )(x + )