Ответ:
Пошаговое объяснение:
16
а²-ab-ac+bc =
= (а²-ab) + (-ac+bc) =
= a(a-b) - c(a-b) =
= (a-c) * (a-b) =
= 4 * 3 = 12
17
a²+ab-ac-bc =
= (a²+ab) + (-ac-bc) =
= a(a+b) - c(a+b) =
= (a-c) * (a+b) =
= 3*2 = 6
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Ответ:
Пошаговое объяснение:
16
а²-ab-ac+bc =
= (а²-ab) + (-ac+bc) =
= a(a-b) - c(a-b) =
= (a-c) * (a-b) =
= 4 * 3 = 12
17
a²+ab-ac-bc =
= (a²+ab) + (-ac-bc) =
= a(a+b) - c(a+b) =
= (a-c) * (a+b) =
= 3*2 = 6