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gurskayatatian
@gurskayatatian
August 2022
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Решите очень вас прошу
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Sakintor
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0 votes
Thanks 1
Seregant
вы забыли один x
Seregant
(x+5)(3x+1)=(5x+3)(x+2)
3x^2+x+15x+5=5x^2+10x+3x+6
3x^2+x+15x+5-5x^2-10x-3x-6=0
-2x^2+3x-1=0|:(-1)
2x^2-3x+1=0
D=(-3)^2-4*2*1=9-8=1
x1=3(-1)/(2*2)=2/4=0.5
x2=3+1/(2*2)=4/4=1
Ответ:0,5;1
2 votes
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Answers & Comments
3x^2+x+15x+5=5x^2+10x+3x+6
3x^2+x+15x+5-5x^2-10x-3x-6=0
-2x^2+3x-1=0|:(-1)
2x^2-3x+1=0
D=(-3)^2-4*2*1=9-8=1
x1=3(-1)/(2*2)=2/4=0.5
x2=3+1/(2*2)=4/4=1
Ответ:0,5;1