Ответ:
7t-7c
Объяснение:
t^2-c^2/ct* 7tc/t+c
(t-c)*(t+c)*7/ t+c
(t-c)*7
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Ответ:
7t-7c
Объяснение:
t^2-c^2/ct* 7tc/t+c
(t-c)*(t+c)*7/ t+c
(t-c)*7