SOLUTION: Previous tutor said it equals -14. The book and calculator says the answer is 0. Help needed. 12+8 radical 81 divided by (-6)

Algebra.Com
Question 842067: Previous tutor said it equals -14. The book and calculator says the answer is 0. Help needed. 12+8 radical 81 divided by (-6)
Found 3 solutions by rfer, mxgirl22, MathTherapy:
Answer by rfer(16322)   (Show Source): You can put this solution on YOUR website!
(12+8*9)/-6=
84/-6=-14
I also get -14
Answer by mxgirl22(39)   (Show Source): You can put this solution on YOUR website!

Previous tutor said it equals -14. The book and calculator says the answer is 0. Help needed. 12+8 radical 81 divided by (-6)
---------------------------------------------

I know this probably isn't much help but I'm going to explain it as best as I can.
----------------------------------
1.) Depending on how you enter the equation into your calculator it can effect the answer.

I used the following:



and got 0 as my answer.


***However, when I used parenthesis like this:



I got -14

------------------------------------------
2.) If we were to do the calculations just one by one this is what I would do.













= -14

----------------------------------------
3.) As you can see I got -14 too. Perhaps the book has a typo...



Answer by MathTherapy(10552)   (Show Source): You can put this solution on YOUR website!

Previous tutor said it equals -14. The book and calculator says the answer is 0. Help needed. 12+8 radical 81 divided by (-6)


If the answer is 0, then the problem is: , as opposed to: . Do you see the difference?

You need to state the problem correctly, WITH PARENTHESES. 

RELATED QUESTIONS


Previous tutor misread the 25 and the radical part is still not clearly explained.... (answered by Fombitz)

Need help solving this with explanation. 12+8 radical 81 divided by... (answered by hovuquocan1997)

I am trying to help my college daughter with some problems. 
She says they are order of... (answered by stanbon)

radical -4 radical -16


my ans is -2 radical 2    the book... (answered by jim_thompson5910)

I have done this chapter over completely 5 times now and still I am not getting the why... (answered by richwmiller)

2x^2-1 divided by x^2 were x is equal to 2 how would i work the question?
I tried... (answered by josmiceli)

Please help.  Here is one that says solve and then find the x intercept. 
3x^2-5x-11=0... (answered by vleith,josmiceli)

Hi Sir/Ma'am,

Please assist.

I am helping my daughter who is in high school. I... (answered by jim_thompson5910)

I am checking my answer to expand my expression:

log3(3square root x /81)

[NOTE:... (answered by stanbon)