Ответ:
4(1+3a²)
Объяснение:
8-4*(1-2a)²+12a² = 8-4*(1-4a²+4a²)+12a² = 8-4+16a²-16a²+12a² = 4+12a² = 4(1+3a²)
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Ответ:
4(1+3a²)
Объяснение:
8-4*(1-2a)²+12a² = 8-4*(1-4a²+4a²)+12a² = 8-4+16a²-16a²+12a² = 4+12a² = 4(1+3a²)