Question

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Answer 1

Answer:

Step-by-step explanation:

1. x^2 - 1

  (a+b) (a-b) = a^2- b^2

  = x^2 - 1^2

  = (x+1) (x-1)

3. 25x^2 - 64

   (5x)^2 - (8)^2

    (5x-8) (5x+8)

5. 4a^2b^2 - 9

   (2ab)^2 - (3)^2

   (2ab-3) (2ab+3)

7. a^2b^2 - 4

   (ab)^2 - (2)^2

   (ab-2) (ab+2)

9. 16x^2y^2 - 9z^2

    (4xy)^2 - (3z)^2

    (4xy-3z) ((4xy+3z)

2. 36 - x^2

    (6)^2 - (x)^2

    (6-x) (6+x)

4. 4x^2 - 49

    (2x)^2 - (7)^2

    (2x-7) (2x+7)

6.  49 - 81y^2

     (7)^2 - (9y)^2

     (7-9y) (7+9y)

8.  4 - x^2y^2

    (2)^2 - (xy)^2

     (2-xy) (2+xy)

10.  16 - 25a^2b^2

      (4)^2 - (5ab)^2

      (4-5ab) (4+5ab)

Answer 2

Answer:

Your answers are in the image below.

Step-by-step explanation:

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