(−8x) ÷ (−2) ????????

2008-10-10 3:48 pm
Option A: 2x

Option B: 4x

Option C: 16x

Option D: 1/16 x

Which of the following?
更新1:

im allowed to ask questions, its yahoo answers!

回答 (10)

2008-10-10 3:59 pm
✔ 最佳答案
Hi,

For this question, we have:

-8x / -2

However, think of the problem as follows:

[-8/-2]x

Therefore, negative / negative = positive and the computations become:

4x <==== FINAL ANSWER [OPTION B]

I hope that helps you out! Please let me know if you have any other questions!
參考: College Calculus Student ; Math Tutor
2008-10-10 3:53 pm
B

-8/-2=4 then replace the x 4x
2008-10-10 3:52 pm
Stop asking so many questions.
-8x / -2
= 4x
2008-10-10 3:52 pm
Option B: 4x
2008-10-11 7:28 pm
( - 8 ) ( x )
-----------------
( - 2 )

4 x<------OPTION B
2008-10-10 4:45 pm
(-8x)/(-2)
= [(-8)/(-2)]x
= 4x
(option B)
2008-10-10 4:01 pm
-8x/-2
= 8x/2
= 4x
2008-10-10 3:58 pm
first step: divide 8x by 2. The answer is 4x. Now, we have to find out if it is negative or positive. We know that a negative number when divided by another negative number is positive. Therefore, the answer is positive 4x

Option B
2008-10-10 3:55 pm
Any two negatives divided or multiplied together always result in a positive. So if you want to make it simpler, just get rid of the negatives, so you get

8x divided by 2

to get answer B (4x).

Just be careful when dealing with more than two negatives - they can get quite tricky if you don't concentrate!
2008-10-10 3:52 pm
-8x * (-1/2)
8/2 x
4x

(B) 4x

















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