| __ | 1. | 4m6/9 - 16p4 | | A. | (7/3 - 4n2)(7/3 + 4n2) | | __ | 2. | 9x2 - 4 | | B. | (5q4x2-m3n)(5q4x2+m3n) | | __ | 3. | 25 p8 /4 - 64 m10 | | C. | (x + 1)(x - 1) | | __ | 4. | 25 q8x4 - m6 n2 | | D. | (2m3/3 + 4p2)(2m3/3 - 4p2) | | __ | 5. | 36k2 - p4x2y6 | | E. | (3x - 2)(3x + 2) | | __ | 6. | 49/9 - 16n4 | | F. | (5p4/2 - 8m5)(5p4/2 + 8m5) | | __ | 7. | 49b8 - 225 | | G. | (10m2 + 9pq2)(10m2 - 9pq2) | | __ | 8. | 100m4 - 81p2 q4 | | H. | (6k + p2xy3)(6k - p2xy3) | | __ | 9. | 121m2 - 1 | | I. | (11m + 1)(11m - 1) | | __ | 10. | x2 - 1 | | J. | (7b4 + 15)(7b4 - 15) |
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