13.which of the following expressions is ( × + 3) (× 2 -3 × + 9) equal to? a.ײ - 27. b.× 2 + 27 c.× 3 - 27 d.× 3 + 27
14. The product of ( × + 2) and (2× +1) is equal to_____. a 6× 2 + 2× +2 b.6ײ+4×+2 c.6ײ+7×+2 d. 6ײ+9×+2
15.What should be the value of k so that (2×+3) (4ײ-k×+9) is a special product of a binomial and a trinomial? a.6 b.-6 c.12 d.-12 pahelppoplease
14. The product of ( × + 2) and (2× +1) is equal to_____. a 6× 2 + 2× +2 b.6ײ+4×+2 c.6ײ+7×+2 d. 6ײ+9×+2
15.What should be the value of k so that (2×+3) (4ײ-k×+9) is a special product of a binomial and a trinomial? a.6 b.-6 c.12 d.-12 pahelppoplease
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Answer:
2. D
4. D
5. D
6. D
8. B
11. D
12. A
13. D
14. 2x² + x + 4x + 2
= 2x² + 5x + 2
15. A