-2(a-4-2a^2+2a)-3a(-a-4-a+2a^2)-6a(-a^2+a+1)-2a+8+4a^2-4a-3a(-a-4-a+2a^2)-6a^3+6a^2-6a-2a+8+4a^2-4a+3a^2+12a+3a^3+12a-6a^3+6a^2-6a-2a+8+4a^2-4a+3a^2+12a+3a^3+12a-6a^3+6a^2-6a(4a^2+3a^2)+(3a^3-6a^3)+(-2a-4a+12a+12a-6a-6a)+87a^2-3a^3+12a-20
-2(a-4-2a^2+2a)-3a(-a-4-a+2a^2)-6a(-a^2+a+1)
-2a+8+4a^2-4a-3a(-a-4-a+2a^2)-6a^3+6a^2-6a
-2a+8+4a^2-4a+3a^2+12a+3a^3+12a-6a^3+6a^2-6a
-2a+8+4a^2-4a+3a^2+12a+3a^3+12a-6a^3+6a^2-6a
(4a^2+3a^2)+(3a^3-6a^3)+(-2a-4a+12a+12a-6a-6a)+8
7a^2-3a^3+12a-20