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ttmsee
@ttmsee
August 2022
2
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Упростите выражения
а) (4х+3)^2-24х
б)18с^2-2(3с-1)^2
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Answers & Comments
Elman309
(4x+3)^2-24x = 16x^2+24x+9-24x =
16x^2+9
18c^2-2(3c-1)^2 = 18c^2-2(9c^2-6c+1) = 18c^2-18c^2+12c-2 =
12c-2
10 votes
Thanks 14
123lutik
Раскрываем скобки по формуле сокращенного умножения:
а) 8х²+24х+9-24х
8х²+9
б) 18с²-2(9с²-6с+1)
18с²-18с²+12с-2
12с-2
5 votes
Thanks 6
123lutik
а) 16х²+24х+9-24х
123lutik
16 х²+9
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Answers & Comments
18c^2-2(3c-1)^2 = 18c^2-2(9c^2-6c+1) = 18c^2-18c^2+12c-2 = 12c-2
а) 8х²+24х+9-24х
8х²+9
б) 18с²-2(9с²-6с+1)
18с²-18с²+12с-2
12с-2