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Wizp
@Wizp
July 2022
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5x^2-3(x^2+2x)+3x+9=14
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MizoriesKun
5х²-3х²-6х+3х+9-14=0
2х²-3х-5=0
D=9+4*2*5=49
x₁=(3+7)/4=2,5
x₂=(3-7)/4=-1
3 votes
Thanks 6
Wizp
Уже решила, но все равно спасибо большое!)
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Answers & Comments
2х²-3х-5=0
D=9+4*2*5=49
x₁=(3+7)/4=2,5
x₂=(3-7)/4=-1