Find the difference.
(6a^2−7−3a^3)−(7+a^3+2a^2)
−4a^3+8a^2+14
−2a^3−4a^2−14
−4a^3+4a^2
−4a^3+4a^2−14
(6a^2−7−3a^3) - (7+a^3+2a^2)
= 6a^2 - 7 - 3a^3 - 7 - a^3 - 2a^2
= 6a^2 - 2a^2 - 3a^3 - a^3 - 7 - 7
= 4a^2 - 4a^3 - 14
Therefore, the difference is -4a^3 + 4a^2 - 14.