A.Perform the indicated operation.
11. (3x - 7) (x + 4)
12. (4x - 1) (2x - 3)
13. (5x - 1) (3x - 1)
14. (4x + 3y) (6x - 5y)
15. (x - 9) (2x² + x - 3)
16. (5 + d) (3d + 2 - d²)
17. (3x² + 4x - 7) (8 - 2x + x²)
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A.Perform the indicated operation.
11. (3x - 7) (x + 4)
12. (4x - 1) (2x - 3)
13. (5x - 1) (3x - 1)
14. (4x + 3y) (6x - 5y)
15. (x - 9) (2x² + x - 3)
16. (5 + d) (3d + 2 - d²)
17. (3x² + 4x - 7) (8 - 2x + x²)
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Answer:
11. 3x² + 5x - 28
12. 8x² - 14x + 3
13. 15x² - 8x + 1
14. 24x² - 2xy - 15y²
15. 2x³ - 17x² - 12x + 27
16. -d³ - 2d² + 17d + 10
17. 3x⁴ - 2x³ + 9x² + 46x - 56