Ⅰ.
polynomial

1.
Operation of polynomials
2.
Identity and Remainder Theorem
3.
Factorization

Ⅱ.
Equations and Inequalities

1.
complex number
2.
Quadratic equation
3.
Quadratic equations and quadratic functions
4.
Cubic and quartic equations
5.
simultaneous quadratic equations
6.
simultaneous linear inequalities
7.
Quadratic inequality

Ⅲ.
Number of cases

1.
Number of cases
2.
permutation
3.
mixture

Ⅳ.
procession

1.
Matrices and their operations
2.
Matrix multiplication

1) Drill workbook that builds the foundation for first-year high school students through repeated practice
Designed to build a solid foundation through intensive calculation practice

2) A complete book of basic concepts that are easy to understand and remember.
Organize the concept into an image so that it sticks in your memory

3) Problem composition that identifies where calculation errors and misconceptions occur.
Whenever there is content that is easy to make mistakes or where misconceptions arise, use characters to highlight its importance.