Ответ:
Смотри ниже
Объяснение:
(a + 5)^2 = a^2 + 10a + 25
(a + 5)(a - 5) = (a -5)( a+ 5) = a^2 - 25
(a - 5)(a - 5) = (a - 5)^2 = a^2 - 10a + 25
-(a - 5)(5 - a) = -(-(a-5)(a - 5)) = (a - 5)^2 = a^2 - 10a - 25
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Answers & Comments
Ответ:
Смотри ниже
Объяснение:
(a + 5)^2 = a^2 + 10a + 25
(a + 5)(a - 5) = (a -5)( a+ 5) = a^2 - 25
(a - 5)(a - 5) = (a - 5)^2 = a^2 - 10a + 25
-(a - 5)(5 - a) = -(-(a-5)(a - 5)) = (a - 5)^2 = a^2 - 10a - 25