3(a-1)^2 + 6a = 3(a^2 - 2a + 1) + 6a3(a^2 - 2a + 1) + 6a = 3a^2 - 6a + 3 + 6a3a^2 - 6a + 3 + 6a = 3a^2 + 3
3(a-1)^2 + 6a = 3(a^2 - 2a + 1) + 6a
3(a^2 - 2a + 1) + 6a = 3a^2 - 6a + 3 + 6a
3a^2 - 6a + 3 + 6a = 3a^2 + 3