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iamond
@iamond
July 2022
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Решите уравнения:
3x(x+2)=2x(x-2)
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Ирэн171
3x^2+6x=2x^2-4x
3x^2-2x^2=-6x-4x
x^2=-10x
x^2+10x=0
D=b^2-4ac=10^2-4*1*0=100.
x1=(-10+10)/2=0
x2=(10+10)/2=10
Ответ: 0;10.
2 votes
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Answers & Comments
3x^2-2x^2=-6x-4x
x^2=-10x
x^2+10x=0
D=b^2-4ac=10^2-4*1*0=100.
x1=(-10+10)/2=0
x2=(10+10)/2=10
Ответ: 0;10.