-2(а-(4+2а(-а-1)))-3а(-а-(4+а(-2-2а)))-6а(-2а+а+1)

Question

-2(а-(4+2а(-а-1)))-3а(-а-(4+а(-2-2а)))-6а(-2а+а+1)

Answer 1

-2(а-(4-2а²-2а))-3а(-а-(4-2а-2а²))+12а²-6а²-6а=-2а+8-4а²-4а+3а²+12а-6а²-6а³+12а²-6а²-6а=-а²-6а³+8