Find a teacher to sign up for the Times Cup Math Competition. This is the competition of the Education Bureau. All entries are made by reporting and filling in information. 165438+1registration in October. The content of the exam is available in Baidu Library. The junior high school competition is divided into five parts: geometry, algebra, number theory, miscellaneous questions and number. In fact, algebra is the easiest to do. Quadratic equation problems only need to master formula, Veda, mirror method, discriminant method and local factorization. Look at it twice, mainly to grasp the intersection of opening, vertex, symmetry axis and non-axis Think clearly when discussing in categories. You can handle such a problem calmly. In general, the problem of quadratic integer solution in one variable is to eliminate the parameters first and then decompose the local factors, and the discriminant is completely flat. In addition, there are some commonly used formulas to learn identity deformation well, master multiplication formula, add cube and cubic difference. The problem of constant deformation is not very difficult, but a strong directional diameter. If you really can't do it, you can do the hard calculation. However, learning algebra still needs good reverse thinking.