X= 12/ 13 .
X 1= 12/ 13，X2=- 12/ 13，
2、2X- 1= 3，
2X= 1 3
X 1=2，X2=- 1，
3、X^3= 125/8
X=5/2 .
4、X^2=0.0 1
X= 0. 1
X 1=0. 1，X2=-0. 1 .
Mathematics compulsory teaching plan 1
1. Point position representation:
(1) First, take a point o as the reference point, which i