/sci/ - Science & Math » Thread #14360442

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can someone help me solve this

Anonymous Sun 03 Apr 11:21:34 2022 No.14360442 View Reply Original Report

Quoted By: >>14360460 >>14360500 >>14360825 >>14360836

i dont know how to get to the answer: -(x-y)^2/xy. look at the photo for more details

Anonymous

Anonymous Sun 03 Apr 2022 11:25:28 No.14360444 Report

Quoted By: >>14360469

Division is not associative.

Anonymous

Anonymous Sun 03 Apr 2022 11:37:16 No.14360460 Report

Quoted By: >>14360600

>>14360442
im a literal brainlet but let me try
$ 4/2/2 = 4/2*2 = 1 so (y-x)/xy/x-y = (x-y)/(xy)*(x-y) = x-y/(x^2-y^2) = (x-y/(x-y)(x+y)) *-(x-y)^2/(x-y)(x+y)+xy = -(x-y)^2/xy $

Anonymous

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Anonymous Sun 03 Apr 2022 11:41:32 No.14360469 Report

Quoted By:

>>14360444
thanks i have learned something new

Anonymous

Anonymous Sun 03 Apr 2022 12:00:02 No.14360500 Report

Quoted By: >>14360688

>>14360442
Rewrite the problem as multiplication of the numerator by the reciprocal of the denominator, then pull the negative out of the numerator to rewrite it as x-y.

$ (y-x) / (xy / x-y) (y-x) * (x-y / xy) ((-1)(x-y) * (x-y)) / xy = - (x-y)^2 / xy$

Anonymous

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Anonymous Sun 03 Apr 2022 12:56:23 No.14360600 Report

Quoted By:

>>14360460
i think mathway calculator is wrong because Division is not associative. 4/2/2 = 4/2 =2 then 2/2 = 1.

i feel ashamed for taking so long to understand what you wrote

Anonymous

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Anonymous Sun 03 Apr 2022 13:30:59 No.14360688 Report

Quoted By: >>14360786

>>14360500
thanks i am not going to use mathway again

Anonymous

Anonymous Sun 03 Apr 2022 14:19:30 No.14360786 Report

Quoted By:

>>14360688
I just showed you how it's right. You also took the reciprocal of the numerator rather than the denominator. Unless you are trying to expand the polynomial and then simplify the xy term? Is this for algebra 1?

Anonymous

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Anonymous Sun 03 Apr 2022 14:36:37 No.14360825 Report

Quoted By:

>>14360442
you made a mistake here

SAGE

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SAGE Sun 03 Apr 2022 14:41:08 No.14360836 Report

Quoted By:

>>14360442
Underaged posters are not allowed. Please pay more attention in your high school algebra class.

Anonymous

Anonymous ## Mod Sun 03 Apr 2022 15:15:31 No.14360922 Report

Quoted By:

This thread was moved to >>>/wsr/1185510

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