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Mathematics 12 Online
OpenStudy (x3_drummerchick):

What did I do wrong in this problem!? Help! ill give medals

OpenStudy (hannaha):

drummer chicks unite!!! :D

OpenStudy (hannaha):

sorry, that was random

OpenStudy (x3_drummerchick):

OpenStudy (anonymous):

woah!

OpenStudy (anonymous):

well what's the problem list the equation so we can help you

OpenStudy (x3_drummerchick):

i took a picture of all my work- its i the attachment above ^

OpenStudy (anonymous):

i know u guys are here do something already

OpenStudy (freckles):

looking backwards it seems like you have in that thinking that -4(2) = -24

OpenStudy (anonymous):

The quadradic formula? is that what your doing

OpenStudy (x3_drummerchick):

this is the problem: \[\frac{ x + \frac{ 5 }{ x } }{ 1+\frac{ 6 }{ x } }=4x\]

OpenStudy (freckles):

\[\frac{-24 \pm 2 \sqrt{159}}{6}= \frac{\frac{-24}{2} \pm \frac{2 \sqrt{159}}{2}}{\frac{6}{2}} \\ \\ =\frac{-12 \pm \sqrt{159}}{3}\]

OpenStudy (anonymous):

Try mathway

OpenStudy (freckles):

other than that your work looks great just end part needs fixing

OpenStudy (x3_drummerchick):

im confused :(

OpenStudy (freckles):

in the end when you divided -24 by 2 you wrote -4 this is not true

OpenStudy (x3_drummerchick):

why cant i simplify the numerator and denominator like afraction?

OpenStudy (freckles):

\[\frac{-24 \pm 2 \sqrt{159}}{6} \\ \text{ you can separate the fraction } \\ \\ \frac{-24}{6} \pm \frac{2 \sqrt{159}}{6} \\ -4 \pm \frac{\sqrt{159}}{3}\]

OpenStudy (freckles):

maybe that is what you meant to do

OpenStudy (mathstudent55):

Look at your last step, the solution. Now look one step up.

OpenStudy (mathstudent55):

-24 and 6 simplify to -12 and 3, not -4 and 3

OpenStudy (x3_drummerchick):

ahhh there we go, that makes more sense to me

OpenStudy (mathstudent55):

You made a small mistake in the very last step.

OpenStudy (x3_drummerchick):

i did this same thing last time lol thanks!!

OpenStudy (mathstudent55):

\(\dfrac{-24 \pm 2\sqrt{159} }{6} = \dfrac{\cancel 2 (-12 \pm \sqrt{159})}{\cancel 2(3)}\)

OpenStudy (freckles):

just curious so this didn't make any sense: \[\frac{-24 \pm 2 \sqrt{159}}{6}= \frac{\frac{-24}{2} \pm \frac{2 \sqrt{159}}{2}}{\frac{6}{2}} \\ \\ =\frac{-12 \pm \sqrt{159}}{3}\] ?

OpenStudy (mathstudent55):

@freckles You figured it out way back.

OpenStudy (x3_drummerchick):

i kinda understand that way that you wrote, the other way was easier lol

OpenStudy (freckles):

ok well as long as you get it

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