Ответ:
Объяснение:
a²-10a + 25 + (a+5)(a-5) = a²-10a + 25 + a² -25 = 2a²-10a = 2a(a-5) = 2*2.3(2.3-5) = 4.6*(-2.7) = -12.42
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Ответ:
Объяснение:
a²-10a + 25 + (a+5)(a-5) = a²-10a + 25 + a² -25 = 2a²-10a = 2a(a-5) = 2*2.3(2.3-5) = 4.6*(-2.7) = -12.42