Is x 2 2x unsolvable, and how can x x 2 0 be solved?

The solution of x 2=2x is 0 or 2

You can bring the results back to the original equation and check whether it is true.

Are the 2x on the right side of the second equation together in the root number?

In this case, square the equation on the left and right.

Get. x^4=2x

And then. x(x^3-2)=0

The solution is 0 or cubic root number 2

If the right side of the second equation is just 2 in the root sign x is outside the root number.

The solution is 0 and the root number 2

There is a solution. b^2-4ac>=0

Here b=-2 a=1 c=0

The above equation calculates 4>0

So there is a solution. x 2 = 2 x x 2 - 2x = 0 x (x-2) = 0 x = 0 or x = 2

x 2 = root number 2x x 2 - root number 2x = 0 x (x - root number 2) = 0 x = 0 or root number 2

x^2=2x

x^2-2x=0

x（x-2）=0

So x=0 or 2

x 2 = root number 2 x

x 2 - root number 2 x = 0

x^1/2(x^3/2-2^1/2)=0

Because x is not equal to 0

So x 3 2 = 2 1 2

So x 3=2

So x=2 1 3(x>0).

It's a fraction. To determine whether a formula is an integer or a fraction, you only need to see whether the denominator contains letters.

There is a solution, and the solution is 0 or 2

x 2 = root number 2 x

x 2 - root number 2 x = 0

x(x-root2)=0

So. x=0 or root number 2

There is also a problem: square on both sides, x=0 or cubic root number 2

The first one has a solution, and the second one is 0 and root 2

x`2=2x

x`2-2x=0

x(x-2)=0

x=0 or x=2

x 2 = root number 2 x

x`4=2x

x`4-2x=0

x(x`3-2)=0

x = 0 or x 3-2 = 0

x 3 = 2 x = the cubic root of 2x=2.

The cubic root of x=0 or x=2.

Explain that x and (x-2) are both greater than or equal to 0 at the same time, i.e., x 0, and x-2 0, resulting in x 2

Since the male wheels of x 0 and x 2 are open to x2 in total, they are x 2.

So the solution of x(x-2) 0 is: x 2

There is a dust return to the stove question can be obtained, x and pie x-2 with the same number, the world.

x o, x-2 is greater than or equal to 0

Let both of them be less than or equal to zero at the same time.

Just ask for their intersection.

x²-2x≥0

x Solid Beam Slow 2x

x|2x -2 or x 2

No problem, please bend the mold, thank you!

x（x-2）≥0

x 0 x-2 0 x 2 can be obtained, so x 2 is multiplied by two numbers, and the negative is positive.

It can be obtained that x digs 0 x-2 0 x 2 so x 0 defines the domain as x 0 or x bi 2

This is a system of unary linear equations. You can directly find the value of the unknown as 2 divided by (Xiangda 3-1).

A univariate equation is an equation that contains only one unknown, the highest order of the unknowns is 1, and both sides are integers. There are five steps to solve a one-dimensional equation, i.e., denominating, deparentheses, shifting terms, merging similar terms, and coefficients to 1, all of which are performed according to the properties of integers and equations.

For equations containing denominators, what we naturally think of is to go to the denominator, of course, to satisfy the nature of the equation, we only need to multiply the common multiple of all denominators on both sides of the equation (for example, in the above equation, we can multiply by 4, by 8, by 16, etc.), but in order to reduce the amount of calculation, we had better multiply by the least common multiple of all denominators on both sides, for example, in the above equation, the least common multiple of 2 and 4 is 4, so we multiply 4 on both sides of the equation, However, many students think that only the term with the denominator is sufficient, so they get it. 2(x+1)-1=2+(2-x), which is obviously wrong, but the reason why it causes such an error is that it is. The phrase "both sides of the equation multiplicated by the least common multiple" is too general, and we can change it to the following paragraph.

The least common multiple of the terms of the equation. To avoid mistakes, we can still introduce mnemonics. Draw each item (along with the symbols) in a straight line, and we can even write it on the head of each item to reduce the error rate"Least common multiple"not only avoids missing items, but also facilitates calculations.

Hello! Glad to hear your question!

Solution: 2x+x=2

3x=2x=2/3

Yours and likes are the greatest support for me! Good luck with you! Thank you! Respectfully.

Solution: The equation is x -2=|x|, to (x -2) =x , (x -2-x) (x -2+x) = 0, (x-2) (x+1) (x+2) (x-1) = 0, yield: x= 1 (rounded) or 2

Please refer to it. Equations containing cherry blossom unknowns are equations, mathematics was first developed in counting, and about numbers and unknowns are combined by addition, subtraction, multiplication, division, and idempotent operations to form algebraic equations: unary linear equations, unary quadratic equations, binary linear equations, and so on.

However, with the emergence of the concept of functions and the introduction of function-based differentiation and integration operations, the scope of equations has been broadened, unknown quantities can be functions, vectors and other mathematical objects, and operations are no longer limited to addition, subtraction, multiplication and division.

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.

For example, the solution of a quadratic equation leads to the discovery of imaginary numbers;

The solution of equations of the fifth degree or more led to the birth of group theory;

The study of a system of equations, which led to the establishment of linear algebra, and the study of polynomials, which led to the emergence of polynomial algebra;

Applying equations to solve geometric problems, leading to the formation of analytic geometry, and so on.

The unknowns in equations can appear in the equations, integers, radicals, trigonometric functions, exponential functions and other elementary functions in the equations.

In secondary school, when you encounter problems with solving equations, in general, you can convert the equation into an integral equation; Generally, it is converted into a one-dimensional quadratic equation, or a system of multivariate one-dimensional equations.

Since mathematics has changed from constant mathematics to variable mathematics, the content of equations has also been enriched because mathematics has introduced more concepts, more operations, and thus more equations. The development of other natural sciences, especially physics, has also directly put forward the need for equation solving, providing a large number of research topics.

x|0, then x -2 0, solution x 2 or x - 2

Classification discussion: when x is 2, x -2 = x is x -x-2 = 0, the factorization gives (x-2) (x+1) = 0, and the solution gives x=2 or x=-1 (rounding).

When x - 2, Kai Hall x -2 = -x is x + x - 2 = 0, the factorization gives (x+2) (x-1) = 0, and the solution gives x = -2 or x = 1 (round).

To sum up, the implicit solution of staring is x= 2

1. First of all, there is a shortage of x(x-2) 0, by the multiplication rule, the two numbers are multiplied, the same sign is positive, and the letter key is x 0x-2 0 or x 0x-2 0.

2. Next, the solution is x 2 or x 0.

3. Finally, when x 2 or x 0, x(x-2) makes sense.

Normal solution.

This is already the simplest Zen loss formula, and the answer can be directly obtained, and the answer is x=0 or x-2.

The formula of the relationship between the size of the god is called the inequality Hu Xu. The equation that uses ≠ to represent inequality relations is also an inequality.