Match the following items.

1. a2 +2ab + b2
factor
2. a2 - b2
(a + b)2
3. a2 -2ab + b2
(a-b)(a2 + ab + b2)
4. a3 - b3
joint variation
5. a3 + b3
(a + b)(a - b)
6. divisor
(a - b)2
7. process
direct variation
8. a simplified procedure that temporarily omits variables
synthetic division
9. y = 10x
combined variation
10. xy = 18
algorithm
11. y = 4xz
(a + b)(a2 - ab + b2)
12. y = 4x/z
inverse variation