What are the talent formulas in Xiayangzhai geomantic omen?

It is the house where we live, and the feng shui of the villa directly affects all the fortunes of the occupants. The standard of the geomantic treasure-house of Yangzhai is: there are mountains behind, green dragons on the left, white tigers on the right, mountains in front, halls in the middle, winding water, hidden wind and gathering gas, making people rich.

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If you have any views on the fortune of traditional numerology or the eight-character "marriage numerology prediction"! Master Ta (oral color \ micro/? : 6 1 4 8,8 6,7)

X 1, x2∈(-∞0] and x 1 < x2, then

f(x 1)-f(x2)=(2x 1+2-x 1)-(2 x2+2 x2)=(2x 1 2x 1- 1 2 x2)=(2x 1-2 x2)(2x 1-2 x2)(2x 12 x2- 1)？ 2x 12x2？

∵x 1