Ответы на вопрос:
1) (a+3)²–6a = (a²+2×3×a+9)–6a = a²+6a+9–6a = a²+9
2) (4a+1)²+8a+1 = ((4a)²+2×4a×1+1²)+8a+1 = 16a²+8a+1+8a+1= 16a²+16a+2
3) 14b²–(4b+1)² = 14b²–((4b)²+2×4b×1+1) = 14b²–(16b²+8b+1) = 14b²–16b²–8b–1 = –2b²–8b–1
Популярно: Алгебра
-
iskakova200007.12.2022 11:44
-
arlashmanov20.02.2021 08:19
-
CorrupteD14.07.2021 08:28
-
coast31g200512.07.2021 10:43
-
domna040429.04.2023 21:45
-
NastyaAnaNastya17.11.2022 18:32
-
evagir04.10.2022 00:47
-
DizlPlayS26.04.2020 16:27
-
gilev2004stepaxa10.07.2020 17:42
-
Galina196002.11.2022 03:03