Factorize: 9-a6+2a3b3-b6

Matching exercise

    
Match the items on the right to the items on the left.
Step 1
Step 2
Step 3
Step 4
Step 5
9-a6+2a3b3-b6=9-a6-2a3b3+b6
=32-a32-2×a3×b3+b32
=32-a3-b32
=3+a3-b33-a3+b3
=a3-b3+3-a3+b3+3