"Association Method" Quadratic Equation of One Variable PPT Courseware 5

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"Association Method" Quadratic Equation of One Variable PPT Courseware 5

We obtain the roots of quadratic equations by arranging them into perfect squares. This method of solving quadratic equations is called the arranging method.

Steps to solve quadratic equations of one variable using the formula method:

1. Transform to 1: Change the coefficient of the quadratic term to 1 (divide both sides of the equation by the coefficient of the quadratic term);

2. Move the term: Move the constant term to the right side of the equation;

3. Recipe: Add half the square of the absolute value of the coefficient of the linear term to both sides of the equation;

4. Deformation: factorize the left side of the equation and combine similar factors on the right side;

5. Square root: According to the meaning of square root, the square root of both sides of the equation;

6. Solve: Solve linear equations of one variable;

7. Definite solution: Write the solution of the original equation.

According to the meaning of the question, list the equations:

1. Place a golden paper edge of the same width around a landscape painting that is 90cm long and 40cm wide to make a wall chart. If the area of ​​the landscape painting is required to be 72% of the entire wall chart area. So what should be the width of the Phnom Penh?

2. A farm wants to build a rectangular chicken farm. One side of the chicken farm is against the wall (the wall is 25m long), and the other three sides are surrounded by wooden fences, which are 40m long.

(1) Can the area of ​​the chicken farm reach 180m²?

(2) Can the area of ​​the chicken farm reach 200m²?

(3) Can the area of ​​the chicken farm reach 180m²?

The matching method is an important mathematical method - the matching method, which can help you reach the pinnacle of your hopes.

The quadratic equation is also an effective mathematical model to describe the real world.

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For more information about the PPT courseware "Methods of Combining Quadratic Equations of a Variable Equation", please click the PPT tab of "Methods of Combining Quadratic Equations ppt".

"Solving Allocation Methods for Quadratic Equations of One Variable" PPT courseware:

"Solution Method for Quadratic Equations" PPT courseware General steps for solving quadratic equations using the combination method: (1) Change the coefficient of the quadratic term of the equation into ________; (2) Move the constant term to the _______ of the equation _side; (3) Add linear term coefficient______ to both sides of the equation..

"Using the Combination Method to Solve Quadratic Equations of One Variable" PPT courseware 2:

"Using the Combination Method to Solve Quadratic Equations" PPT Courseware 2 Review and review the steps of using the combination method to solve quadratic equations: 1. Move terms: move the constant term to the right side of the equation; 2. Formula: add both sides of the equation The square of half the coefficient of a linear term; 3. Square root: According to the square root meaning...

"Using the Combination Method to Solve Quadratic Equations of One Variable" PPT courseware:

"Using the Combination Method to Solve Quadratic Equations" PPT courseware learning objectives: 1. Be able to use the combination method to solve quadratic equations whose quadratic term coefficients are not 1. 2. Experience exploring the general form of quadratic equations (x+h)=k (k0) process, further understand the meaning of the matching method 3. Experience...

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Update Time: 2024-07-04

This template belongs to Mathematics courseware Beijing Normal University Ninth Grade First Volume Mathematics industry PPT template

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