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1. x2 - 9 =

2. 9x2 - 64 =
3. 9x2 - 49 =
4. 4x2 - 25 =
5. 4x2 - 9 =
6. 16x2 - 9 =
7. 25x2 - 9 =
8. 36x2 - 49 =
9. 100x2 - 49 =
10. 25x2 - 36 =
11. 9x2 - 100 =
12. x2 - 36 =

Answer Key
Factor each expression
x2 - 9 = (x + 3)(x - 3)
9x2 - 64 = (3x + 8)(3x - 8)
9x2 - 49 = (3x + 7)(3x - 7)
4x2 - 25 = (2x + 5)(2x - 5)
4x2 - 9 = (2x + 3)(2x - 3)
16x2 - 9 = (4x + 3)(4x - 3)
25x2 - 9 = (5x + 3)(5x - 3)
36x2 - 49 = (6x + 7)(6x - 7)
100x2 - 49 = (10x + 7)(10x - 7)
25x2 - 36 = (5x + 6)(5x - 6)
9x2 - 100 = (3x + 10)(3x - 10)
x2 - 36 = (x + 6)(x - 6)

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Name Date
Factor each expression
x2 - 25 =
49x2 - 25 =
36x2 - 1 =
4x2 - 1 =
x2 - 49 =
16x2 - 49 =
81x2 - 64 =
x2 - 36 =
x2 - 100 =
x2 - 1 =
16x2 - 25 =
49x2 - 1 =

TheMathWorksheetSite.com

Answer Key
Factor each expression
x2 - 25 = (x + 5)(x - 5)
49x2 - 25 = (7x + 5)(7x - 5)
36x2 - 1 = (6x + 1)(6x - 1)
4x2 - 1 = (2x + 1)(2x - 1)
x2 - 49 = (x + 7)(x - 7)
16x2 - 49 = (4x + 7)(4x - 7)
81x2 - 64 = (9x + 8)(9x - 8)
x2 - 36 = (x + 6)(x - 6)
x2 - 100 = (x + 10)(x - 10)
x2 - 1 = (x + 1)(x - 1)
16x2 - 25 = (4x + 5)(4x - 5)
49x2 - 1 = (7x + 1)(7x - 1)

TheMathWorksheetSite.com

Name Date
Factor each expression
64x2 - 81 =
x2 - 4 =
4x2 - 9 =
49x2 - 36 =
9x2 - 4 =
49x2 - 64 =
x2 - 49 =
49x2 - 81 =
4x2 - 81 =
x2 - 1 =
4x2 - 1 =
100x2 - 9 =

TheMathWorksheetSite.com

Answer Key
Factor each expression
64x2 - 81 = (8x + 9)(8x - 9)
x2 - 4 = (x + 2)(x - 2)
4x2 - 9 = (2x + 3)(2x - 3)
49x2 - 36 = (7x + 6)(7x - 6)
9x2 - 4 = (3x + 2)(3x - 2)
49x2 - 64 = (7x + 8)(7x - 8)
x2 - 49 = (x + 7)(x - 7)
49x2 - 81 = (7x + 9)(7x - 9)
4x2 - 81 = (2x + 9)(2x - 9)
x2 - 1 = (x + 1)(x - 1)
4x2 - 1 = (2x + 1)(2x - 1)
100x2 - 9 = (10x + 3)(10x - 3)

TheMathWorksheetSite.com