Whoever helps me write it, who will write it for me.

When the grass showed its vigorous vitality after being burned by wildfires in the spring breeze, we were ready to set off, rolling the memories of this journey into luggage and carrying them on our shoulders; When someone is whispering that immortal sentence over and over again".

<> I'm glad to answer the questions for you.

What to do if you can't do your homework.

Enthusiastic netizens. 1. Review first and then homework. See if there is anything you don't understand, understand the basics, and then do your homework, so that you won't be helpless because of temporary difficulties.

2. Make a summary of the solution. After completing a certain amount of homework or at the end of a learning stage, you should make a good summary, classify all kinds of exercises, explore the solution ideas and key points that should be paid attention to in different types of problems, and prepare a special notebook to record your own learning intentions, which will greatly improve your problem-solving ability.

3. Think more about tackling difficulties. By reading or delving into example problems, you can solve your ideas independently, so that you can deepen your understanding and improve your ability. Only when you can't solve it after repeated thinking and a long period of hard work, do you ask others for advice and get inspiration from other people's prompts, rather than letting others do it instead.

Fourth, dare to explore and innovate. Homework should never be limited to simple imitation, but should use one's own wisdom to find new ways. For example, let's take a calculation like this:

8 8 5 8 8, many children add up one by one, but if you use 8 4 5 37 to calculate, it is innovation, if you use 8 5 3 37 to calculate, it is better. Therefore, we advocate "one problem with multiple solutions", which can develop our thinking ability and digest knowledge comprehensively and deeply.

5. Review and Revision. After completing the homework, it should be carefully reviewed. Prepare a "collection of mistakes", collect the questions that are wrong in each homework, test, and exam, classify and sort them out, and write down the mistakes and correction methods, so that drawing inferences from one case will greatly improve the accuracy of problem solving.

Original = -6 x 4 + (2a-3) x 3 + 13 x 2 because x 3 is not included

So 2a-3=0a=

3x -12x+4, a=3, b=-12, c=4,96, the root is two plus two-thirds of the root number six, or two minus two-thirds of the root number six. m＜1

The first sub-question (1)(3) or (2)(3).

Question 2: Evidence from (1) and (3).

Proof: Because eob and doc are against the top corner.

So eob= doc

And because (1) and (3) conform to the angular edge theorem.

So eob is all equal to doc

So ob=oc ebo= dco

So obc= ocb

So EBO+ OBC= DCO+ OCB, i.e. ABC= ACB

So ABC is an isosceles triangle.

It is sufficient to prove the congruence of the triangle.