Factoring Difference of Squares
 Factoring the Difference of Perfect Squaresa2 – b2 is a special product binomial. It can be classified as the "difference of perfect squares"a2 – b2 factors into:  (a – b)(a + b) 4x2 - 9 = (      - 3 ) ( 2x + 3 )Fill in the missing term. x2 - 16 = ( x - 4 ) ( x +        )Fill in the missing term. x2 - 121 = ( x -       ) ( x + 11 )Fill in the missing term. 9x2 - 4 = ( 3x      2 ) ( 3x + 2 )Fill in the missing sign. x2 - 36 = (      -      ) ( x + 6 )Fill in the missing terms. 9x2 - 25 = (      -      ) (      +      )Fill in the missing terms. 16x2 - 81 = (      -      ) (      +      )Fill in the missing terms. x2y2 - 100 = (        -        ) (        +        )Fill in the missing terms. Factor the expression.49x2 - 25y2(​7x – 5y)(7x – 5y)(7x – 5)(7x + 5)(​7x – 5y)(7x + 5y)can not be factored Factor the expression.x2 + 9y2(x + 3y)(x – 3y)(x – 3y)(x + 3y)(x – 3y)(x – 3y)can not be factored Factoring the Difference of Perfect Squaresa2 – b2 is a special product binomial. It can be classified as the "difference of perfect squares"a2 – b2 factors into:  (a – b)(a + b)
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