What floor do you want to buy for your next fortune telling?

The environment at home has a great relationship with human health, so the environment of the house is very critical and needs our attention. For example, if the house you live in is wet all the year round, you are likely to get sick because of it.

Want to improve as soon as possible, or want to know your fortune.

It will be adjusted and improved according to the status quo of the friends.

Promote career fortune and health fortune.

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