| __ | 1. | -3xy+b3+4b3+12xy | | A. | 2b3+4xy | | __ | 2. | -5xy+2x-3y+5y-7x+4xy | | B. | 3x2+10x | | __ | 3. | 3a-5a+4a-a | | C. | 8a | | __ | 4. | 4a-6a+10a | | D. | 2a | | __ | 5. | 4b3+3xy-2b3+xy | | E. | 5b3+9xy | | __ | 6. | 5x2+7x-22+3x | | F. | 3x2+3x | | __ | 7. | 7a+10a-15a | | G. | -xy-5x-y | | __ | 8. | 10x+10y-5xy-4x-6y | | H. | 7x2+y2+6x-9y | | __ | 9. | x+x2+2x+2x2 | | I. | -5xy+6x+4y | | __ | 10. | x2+y2+3x-4y+3y-5x+6x2 | | J. | a |
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