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АминкаАпельсинка2004
@АминкаАпельсинка2004
June 2022
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решите уравнение x(x-2)(x+1)=xв квадрате (x-1) СРОЧНО!!!
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RykaBa3yka
X(x-2)(x+1)=x^2(x-1)
x(x^2+x-2x+2)=x^3-x^2
x^3+x^2-2x^2+2x=x^3-x^2
x^3+x^2-2x^2+2x-x^3+x^2=0
x^2-2x^2+2x+x^2=0
2x^2-2x^2+2x=0
2x=0, |:5
x=0
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Answers & Comments
x(x^2+x-2x+2)=x^3-x^2
x^3+x^2-2x^2+2x=x^3-x^2
x^3+x^2-2x^2+2x-x^3+x^2=0
x^2-2x^2+2x+x^2=0
2x^2-2x^2+2x=0
2x=0, |:5
x=0