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Mathematics, 21.05.2020 21:01 jacobhawkins112471

Se considera expresia E(x)=2(x+3)²-3(x-1)(x+3)+(x-2)²-31 unde x este numar real. Calculati valoarea absoluta a numarului A= E(1)-E(2)+E(3)-E(4)+E(2019)-E(2020)

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Se considera expresia E(x)=2(x+3)²-3(x-1)(x+3)+(x-2)²-31 unde x este numar real. Calculati valoarea...
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