What are the jingle tricks in rural residential geomantic omen?

1. Don't take your old broom with you when you move.

2. The right palm is itchy and fierce, and it will break the money.

Itchy palms, good luck, good fortune.

3. Right palm, look at the X in the palm print. The number of x is the number of children in the future.

Be careful at the seaside or on the boat. Seagulls will fly over your head and some people will die.

It's lucky to have a cat on board.

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 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.