Which one of the following will increase the cash cycle? 

Factor Completely: 4×2+17x-15

Multiply and Simplify: (x+y)(x2-xy+y2)

Factor Completely: 6×2+x-5

Simplify: (4a-2b3)-3

Multiply and Simplify: (x+2y)(x-2y+2)

Simplify: (2a)0(3a2)(2a-4)

Factor Completely: 8×3+1

Multiply and Simplify: (x+4)(x-4)

Simplify: (-2c-3d-2)-3