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TypoiSkolnik
@TypoiSkolnik
August 2021
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А) (a2 \ a-2b - a3\ a2 - 4ab +4b2) : (a \ a-2b - a2 \ a2 -4b2 )
Б) 4 \ x -y - 3 \ x+y - 8y \ x2 - y2
Цифры после букв это степень
/ это длинная черта деления
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skvrttt
А) (a²/a — 2b — a³/a² — 4ab + 4b²)/(a/a — 2b — a²/a² — 4b²) = (a — 2b — a — 4ab + 4b²)/(1 — 2b — 1 — 4b²) = (4b² — 4ab — 2b)/(—4b² — 2b) = (2b(2b — 2a — 1))/(2b(—2b — 1)) = (2b — 2a — 1)/(—2b — 1);
б) 4/x — y — 3/x + y — 8y/x² — y² = 1/x — 8y/x² — y².
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Answers & Comments
б) 4/x — y — 3/x + y — 8y/x² — y² = 1/x — 8y/x² — y².