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1. 3x 1 -23 = 2. 14e -9 = 3. (3x )(x ) 3 3 = 4. (5dex )(d e x ) = -1 2 -2 -1 5. -4x 3x -2 3 = 6. -4c m r -2c m r 3 3 3 3 -1 -3 = 7. (b eh ) -3 3 0 = 8. -2xy (2x y ) = 3 -1 3 0 9. -3x -2x 4x -2x -2 -2 • 2 = 10. (h s • -5h s ) = 3 -3 -1 2 2 11. -3ht (3h ) -3t -2 -3 3 3 = 12. -2d (-3d ) -1 2d 3 = 2 |