А) (у+4)(у-2) = у²-2у+4у-8=у²+2у-8.
Б) (3х-5)(2х+9) = 6х²+27х-10х-45=6х²+17х-45
В) (m+1)(m²-m+3) = (m+1)×m²-(m+1)×m+(m+1)×3=?...
Г) (-2-у)(у²+3) = -2у²-6-2у²-3у=-4у²-6-3у
Объяснение:
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А) (у+4)(у-2) = у²-2у+4у-8=у²+2у-8.
Б) (3х-5)(2х+9) = 6х²+27х-10х-45=6х²+17х-45
В) (m+1)(m²-m+3) = (m+1)×m²-(m+1)×m+(m+1)×3=?...
Г) (-2-у)(у²+3) = -2у²-6-2у²-3у=-4у²-6-3у
Объяснение: