1. (4a^2+ 6a - 2) - (2a^2 - 3a + 4)
11. (a^2 + 2ab + b^2)(a^2 - 2ab + b^2)
11. (a^2 + 2ab + b^2)(a^2 - 2ab + b^2)
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Penjelasan dengan langkah-langkah:
1. (4a²-2a²)+(6a-(-3a))+(-2-4)= 2a²+9a-6