/sci/ - Science & Math » Thread #10943206

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Anonymous Wed 04 Sep 13:38:43 2019 No.10943206 View Reply Original Report

Quoted By: >>10943218 >>10943938 >>10944196

Started mechanical engineering and my mathematics pre-course teacher doubted the professors solution and everyone left class confused. Can anyone help me out and explain/solve it?

Anonymous

Anonymous Wed 04 Sep 2019 13:43:13 No.10943218 Report

Quoted By: >>10943272

>>10943206
https://www.wolframalpha.com/input/?i=%28-%289x%5E2-1%29%2F%2815x%5E2%2B5x%29%29%2F%28-%283x-1%29%2F%285x%29%29

I don't get your problem.

Anonymous

Anonymous Wed 04 Sep 2019 13:51:14 No.10943235 Report

Quoted By: >>10943272

First off homework goes else where secondly yes that is a correct simplification.

https://www.wolframalpha.com/input/?i=%28-%289x%5E2-1%29%2F%2815x%5E2%2B5x%29%29+simplified

Anonymous

Anonymous Wed 04 Sep 2019 14:07:58 No.10943272 Report

Quoted By:

>>10943218
>>10943235
thanks and sorry my guys, it's just that two of my professors had two different and wrong solutions and I thought I was being a brainlet about this

Anonymous

Anonymous Wed 04 Sep 2019 19:32:29 No.10943938 Report

Quoted By: >>10944196

>>10943206
>drawing your 1 like a 7

Anonymous

Anonymous Wed 04 Sep 2019 21:04:47 No.10944196 Report

Quoted By:

>>10943206
15x^2 + 5x = (5x)(3x+1)
9x^2 - 1 = (3x-1)(3x+1)

also this >>10943938

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