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Автор - gxufu

упростите выражение: (x-2)(x+2 )-x(x-1)ПОЖАЛУЙСТА ​

Ответ

Автор - TMHSH

(x + 2)(x - 2) - x(x - 1) = {x}^{2}  - 4 -  {x}^{2}  + x = x - 4

Ответ

Автор - SenkoSan

============================================\(x-2)(x+2 )-x(x-1)=x^2-2=x^2-4=x*2-4-x(x-1)=-4+x\============================================

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