–9 – 4(2x + 1) + 8 ??

2008-10-02 3:14 pm
8x + 3
–8x – 5
–8x – 2
–8x + 3

Which of the following is the correct answer?

回答 (6)

2008-10-02 3:20 pm
✔ 最佳答案
distribute, then consolidate the terms:

-9 -8x - 4 +8
-8x + (-9 -4 + 8)
-8x -5
2008-10-02 5:13 pm
- 9 - 8x - 4 + 8
- 8x - 5
2008-10-02 3:31 pm
–8x – 5
2008-10-02 3:19 pm
-9 - 8x - 4 + 8 (use the distributive property)

-8x - 9 - 4 + 8

-8x -13 + 8

Answer : -8x - 5
2008-10-02 3:19 pm
–8x – 5
2008-10-02 3:19 pm
-9 - 4(2x + 1) + 8
= -9 - 4*2x - 4*1 + 8
= -9 - 8x - 4 + 8
= -8x - 9 - 4 + 8
= -8x - 5


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