Answer:
(-6d³ +3d² +4d) - (10d³ +7d-2)
Distribute
−6d³ + 3d² + 4d - (10d³ +7d − 2) -
-6d³ +3d² + 4d - 10d³7d +2
Combine like terms
-6d³ +3d² +4d-10d³-7d +2
-16d³ +3d² + 4d - 7d+2
Combine like terms
-16d³ +3d²+4d-7d+2
-16d³ +3d²-3d+2
Solution
-16d³ +3d²-3d+2
