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CrRaZzyGirL
@CrRaZzyGirL
July 2022
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juliaFV
3/7y^2 + 3/7y*0,4 - 9/14 y - 9/14*0.4 = 0
Приводим к общему знаменателю:
6/14y^2 + 2,4/14 y - 9/14 y - 36 = 0
Имеем право опустить знаменатель:
6y^2-6,6y-3,6=0
Делим на 6:
y^2-1,1y-0,6=0
y1=1,5; y2=0,4
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Answers & Comments
Приводим к общему знаменателю:
6/14y^2 + 2,4/14 y - 9/14 y - 36 = 0
Имеем право опустить знаменатель:
6y^2-6,6y-3,6=0
Делим на 6:
y^2-1,1y-0,6=0
y1=1,5; y2=0,4