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lapa847
@lapa847
October 2021
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Помогите пожалуйста, дз решить.
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Mejora
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(x-2)(x+2)=2(x-1)^2-x^2
x^2-4=2(x^2-2x+1)-x^2
x^2-4=2x^2-4x+2-x^2
-4=4x+2
-4x=2+4
-4x=6
x=-1,5
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Answers & Comments
Verified answer
(x-2)(x+2)=2(x-1)^2-x^2x^2-4=2(x^2-2x+1)-x^2
x^2-4=2x^2-4x+2-x^2
-4=4x+2
-4x=2+4
-4x=6
x=-1,5