Simplify: 3(a−2b)−2(a+3b)3(a - 2b) - 2(a + 3b)3(a−2b)−2(a+3b)
a−12ba - 12ba−12b
a+12ba + 12ba+12b
5a−12b5a - 12b5a−12b
a−6ba - 6ba−6b