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1. (7x+2) (10x+3)
2. (2x-1) (7x-2)
3. (2x-9) (7x+4)
4. (12x+1) (5x+2)
5. (4x-3) (5x+9)
6. (6x-5) (3x-2)
9.4m questions
12.2m answers