Is the feng shui of the house at home credible? How to solve it?

According to feng shui, the main goal of choosing the orientation of yin house or yang house is to seek the balance between qi and yin and yang. The determination of orientation must conform to the date of birth, and the good or ill luck can be judged through the changes of yin and yang, the birth of five elements, restraint, culture and divination.

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If you are interested in the eight-character "marriage numerology prediction"

How to treat traditional numerology or fortune?

Master Ta (oral color \ micro/? : 3 9 9 6, 1 9,4)

Solution: Let the analytic expression of quadratic function be y = ax2+bx+c∶ and the symmetry axis be x=4∴-b/2a=4? That is, the quadratic function with b=-8a has two intersections with the X axis and one intersection with the Y axis. Let the intersection with the X axis be (x 1, 0, (x2, 0), and the intersection of x2 > x 1 with the Y axis be (0, c). X 1+x2 can be obtained from the relationship between roots and coefficients. The base of the triangle formed by x 1*x2=c/a is x2-x1x2-x1= √ (x2+x1) 2-4x1* x2 = √ B2/A2-4c.