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July 2022
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Решите уровнение (4,9-x):1,2=3
Решите уровнение 3,8x(x-0,2)=2,28
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Antonio1
(4,9-х):1,2=3
4,9-х=1,2*3
4,9-х=3,6
х=4,9-3,6
х=1,3.
Ответ:1,3.
3,8х(х-0,2)=2,28
3,8х^2-0.76х=2,28
3.8x^2-0.76x-2.28=0
D=0.5776+4*3.8*2.28=35.2336
x1=0.76+5.94 /7.6 =0.88
x2=0.76-5.94 /7.6 = -0.68
Ответ:0,88; -0,68.
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Answers & Comments
4,9-х=1,2*3
4,9-х=3,6
х=4,9-3,6
х=1,3.
Ответ:1,3.
3,8х(х-0,2)=2,28
3,8х^2-0.76х=2,28
3.8x^2-0.76x-2.28=0
D=0.5776+4*3.8*2.28=35.2336
x1=0.76+5.94 /7.6 =0.88
x2=0.76-5.94 /7.6 = -0.68
Ответ:0,88; -0,68.