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dasha2012235
@dasha2012235
August 2022
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MizoriesKun
6х²-х-1 (2x-1)(3x+1) (2x-1)
----------- = ------------------ = -----------
9х²-1 (3x-1)(3x+1) (3x-1)
6х²-х-1=0
D=1+24=25
x=(1+5)/12=1/2
x=(1-5)/12= -1/3
6х²-х-1=6*(x-1/2)(x+1/3)=2*(x-1/2)*3*(x+1/3)=(2x-1)(3x+1)
3 votes
Thanks 6
dasha2012235
а как у вас в числителе пооучилось (2х-1(3х+1)
MizoriesKun
решаешь квадратное уравнение 6х²-х-1=0
MizoriesKun
я же написала ниже
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Answers & Comments
----------- = ------------------ = -----------
9х²-1 (3x-1)(3x+1) (3x-1)
6х²-х-1=0
D=1+24=25
x=(1+5)/12=1/2
x=(1-5)/12= -1/3
6х²-х-1=6*(x-1/2)(x+1/3)=2*(x-1/2)*3*(x+1/3)=(2x-1)(3x+1)