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/sci/ - Science & Math

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9512875 No.9512875 [Reply] [Original]

The solution sheet says the answer is 3s+15+(57/s-5) but I get 3s-15+(57/s-5)

I feel like I'm gonna puke. Why is this happening?

>> No.9512944
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9512944

>>9512875
>brainlet

also sage

>> No.9512982

>>9512875
0s - (-15s) = 15s

>> No.9513040

>>9512875
KILL YOURSELF YOU MOUTH BREATHER WHY CAN'T YOU FUCKING POST A ROTATED PICTURE
I'm sorry I don't remember how this fucking long division algorithm is supposed to go but the idea with these things is you figure something that (s-5) factors into with only an s^2 term. Needs to be (s+5) so there is no s term. So
N=3s^2-18=3(s^2-6)=3(s^2-25+19)=3(s-5)(s+5)+3(19)
and N/(s-5) = 3(s+5)+57/(s-5), s !=5

>> No.9513048

>>9512875
http://www.mesacc.edu/~scotz47781/mat120/notes/divide_poly/long_division/long_division.html

>> No.9513051

>>9512875
>Struggling with Algebra 1
GTFO you underaged retard