What is the use of learning equations, and how to learn equations well?

The most basic thing is that you will take the exam.

For engineering majors, the professional foundation will be used.

The idea of equations can help to understand things in many other disciplines.

The linear way of thinking in mathematics and the straightforward way of presentation can help solve the practical problems that you encounter in life in the future.

For example, before learning equations, the idea of solving problems is to think and calculate backwards from the problem, but after learning equations, the idea of column equations is positive and direct.

Categories: Education, Science, >> Learning Aid.

Analysis: Hehe, I'm just the opposite of you. My equations are better.

First of all, the unknowns must be clear, and it will not be difficult in the future. According to the conditions, list the equations with the unknowns you set, and some problems need to use the unknowns several times, which is an empirical problem. Go for it!

I believe you will be able to learn well!!

These methods are only a transitional role, and it is not necessary to really learn the equations well.

Plus a point: when you look at the question, you look at the problem first, and then look carefully at what conditions are available, and see which ones are known and which are unknown. Then think about what conditions are needed to ask for an answer, then use the known conditions to obtain those conditions (some simple questions will give those conditions directly), and finally find the answer.

Solving a problem with a one-dimensional equation is nothing more than changing the answer or the conditions needed to find the answer to x, so as to better analyze the problem.

If you're good at math, it's not too difficult to have a one-dimensional equation. Here's the general format of a univariate equation:

Solution: (The question is copied, except that "what" is changed to x or according to the meaning of the question).

According to the meaning of the topic (the general language, you can omit a lot of words to explain, which is deeply loved by the teachers and students in the majority of middle schools): column formula (that is, you substitute x into the formula, just like you check the arithmetic, and use x as the answer to find the known conditions).

Solving equations (that is, you are going to solve equations).

A: ......The main thing is to find the equivalent relationship.

Then set the quality to x (whether it's a problem or not) and export the answer.

First find out the efficiency of the first workshop that did not transfer people: 15x4=60 The efficiency of A is 50 now, then the efficiency check: 60-50 = 10 After a few days, let the start, and the remaining part of the car envy is:

2x(15+50)=130 then the number of days for a number of days is: 130 10 = 13 days.

Then the total quantity is: (13+2)x(15+50)=975

Xie Xuan Song teased the answer to Zheng:

I learned how to get along with my classmates, and I also learned that I can't be too careful about anything, and I have to think about others when doing things.

Equations have a variety of forms, such as unary linear equations, binary linear equations, unary quadratic equations, etc., and the shields can also form a system of equations to solve multiple unknowns.

There are three solutions to a cubic equation, including Caldan formula, Shengjin formula, and factorization. To put it simply, it is the formula method and the factorization method. It is similar to the formula method in the solution of unary quadratic equations, which is applicable to all equations, while the factorization method is generally only applicable to equations with rational roots.

Of course, the main purpose of applying the factorization method to cubic equations is to reduce the order, so it is also possible to use the factorization method when there are irrational roots or complex roots.

Factoring does not necessarily work for all unary cubic equations. At this time, if you want to use the factorization method, you must meet the condition that there are rational roots, otherwise it is difficult to decompose due to the potato chain.

Equations occupy an important place in mathematics and seem to be an eternal topic in mathematics. The emergence of equations not only greatly expanded the scope of mathematical applications, enabling many problems that could not be solved by arithmetic problem solving, but also had a great impact on the progress of mathematics in the future. In particular, many major discoveries in mathematics are closely related to it.

The development of mathematics is nothing more than the in-depth understanding and accumulation of concepts, theorems, formulas and other knowledge, and in this process, it is accompanied by the development of ideas, thinking methods, as well as organizations and tools. From different perspectives, mathematics can be divided into different stages of development, such as from the perspectives of discipline development, ideological methods, use of symbols, and cultivation of mathematical talents.

To learn the equation well, we must first understand what the equation is, then find out the unknowns in the equation, and finally find the solution of the unknown, the process of solving the equation is to solve the equation, and the equation must know how to solve, and the calculation of solving the equation is nothing more than addition, subtraction, multiplication and division, first calculate multiplication and division, add and subtract, and the one with parentheses will first count the inside of the parentheses, and finally the outside of the parentheses.

What you don't need to solve an equation is addition, subtraction, multiplication and division, and think of it as one of the multipliers, subtraction, subtraction, dividends and divisors or additions, and then calculate and calculate.

Practice and do a lot of calculations.

Mathematics has equations, there are no "circles".

The original meaning of "fang" is to join, which means to put two boats together and tie the bow together, which is called Fang. Therefore, the series of formulas listed is called "equations". "Equation" can be seen as a near-phonetic word for "square" (square matrix of numbers).

The idea of equations can help you understand many other disciplines, and the linear way of thinking in mathematics and the straightforward presentation can help you solve practical problems in your life in the future. For example, before learning equations, the idea of solving problems is to think and calculate backwards from the problem, but after learning equations, the idea of column equations is positive and direct.

To learn an equation, you must first know what an equation is.

The second is to understand the relationship between the individual quantities in the equation.

Again, it is necessary to master the algorithm of equations. Master the rules of moving.

For example, 50-x=30, in the equation, 50 is the subtracted number, x is the subtracted number, and 30 is the difference. It can be understood as knowing the subtracted number and finding the difference subtracted number.

x=50-30 x=20