Ответ:
am² -an-bm²+cn-cm²+bn=am² -bm²-cm² -an+bn+cn =m²(a -b-c) -n(a-b-c) =
(a -b-c)(m² -n).
Объяснение:
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Ответ:
am² -an-bm²+cn-cm²+bn=am² -bm²-cm² -an+bn+cn =m²(a -b-c) -n(a-b-c) =
(a -b-c)(m² -n).
Объяснение: