First, the higher-order arithmetic progression equation:

This kind of equation usually needs to be solved by advanced mathematical skills and methods, such as summation formula and general term formula.

Second, the higher order geometric series equation:

This kind of equation usually needs to be solved by advanced mathematical skills and methods, such as summation formula and general term formula.

Three, a complex quadratic equation:

This kind of equation usually needs to be solved by using the discriminant of roots and the relationship between roots and coefficients.

Four, multivariate quadratic equation:

This kind of equation usually needs to be solved by substitution elimination method or addition and subtraction elimination method.

Five, solve the equation:

Solving equations refers to the process of solving one or more unknown equations. An equation is an equation between one or more unknowns and constants. The purpose of solving the equation is to find the value of the unknown quantity and make the equation hold.

Solving equations usually requires mathematical methods and skills, such as algebra, equations, arithmetic progression, geometric series and so on.

How to learn mathematics well;

First of all, establish a good foundation:

The first step to learn mathematics well is to lay a good foundation. Before learning new mathematical concepts, you need to make sure that you have mastered the basic knowledge and skills. Make sure you have a clear understanding of basic concepts and skills. There are weaknesses in basic knowledge, which should be supplemented and consolidated in time.

Second, practice:

Learning math well requires a lot of practice. Practice can help you better understand mathematical concepts, master mathematical skills and be familiar with mathematical formulas and theorems. Reading math textbooks can help you better understand math concepts and methods. When reading the textbook, you can try to think about the problem yourself and try to solve it yourself.

Third, ask for help:

If you are in trouble, you can ask your teacher or classmates for help. They can provide guidance and suggestions to help you better understand mathematical concepts and methods. Think more, learning mathematics needs to think more. You can try different ways of thinking about the problem and try to solve it yourself.

Plan well: Learning math requires a good plan. You can make a study plan and arrange time and energy to study math according to the plan. Conduct regular self-assessment to see where you have improved and where you need to strengthen. Adjust the study plan in a targeted way.