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Solving Difference of Squares
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| A | B |
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| x^2 - 9 = 0 | x = 3, x = -3 |
| x^2 - 25 = 0 | x = 5, x = -5 |
| x^2 - 36 = 0 | x = -6, x = 6 |
| x^2 - 49 = 0 | x = -7, x = 7 |
| x^2 - 16 = 0 | x = 4, x = -4 |
| x^2 - 1 = 0 | x = 1, x = -1 |
| x^2 - 64 = 0 | x = -8, x = 8 |
| x^2 - 4 = 0 | x = 2, x = -2 |
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