NOVAGAMERCOM124GO NOVAGAMERCOM124GO Matemática Respondido d (10x ^ 3 + 6x ^ 2 - 5x + 1) - (- 12x ^ 3 - 2x ^ 2 + x - 1) Qᴜᴀʟ ᴏ ʀᴇsᴜʟᴛᴀᴅᴏ??