"Using Formula Method to Factorize" PPT courseware

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Qingdao Edition Seventh Grade Mathematics Volume 2	pptx	6 MB

"Using Formula Method to Factorize" PPT courseware

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Upload Time: 2024-10-17

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Description

"Using Formula Method to Factorize" PPT courseware

learning target:

1. Understand the meaning of the square difference formula and the perfect square formula in factorization.

2. Be able to factor polynomials using the formula method.

3. Understand the general steps of factorization.

Learning focus: Be able to use formula methods to factorize polynomials

Learning Difficulties: Correct Application of Formula Method

Looking back and thinking

Factor the following formulas:

(1)3a3b2-12ab3

(2)x(a+b)+y(a+b)

(3)a(m-2)+b(2-m)

(4)a(x-y)2-b(y-x)2

(Integer multiplication) (Factorization)

(a+b)(a-b)=a2-b2 a2-b2= (a+b)(a-b)

(a+b)2=a2+2ab+b2 a2+2ab+b2=(a+b)2

(a-b)2= a2-2ab+b2 a2-2ab+b2=(a-b)2

Using them as formulas, you can factor certain polynomials. This factoring method is called the formula method.

Class summary

Factoring the formula:

squared difference formula

perfect square formula

a2-b2= (a+b)(a-b)

a2-2ab+b2=(a-b)2

a2+2ab+b2=(a+b)2

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"Using Formula Method to Factorize" PPT Courseware 2:

"Using Formula Method for Factorization" PPT Courseware 2 Use your brain to answer the following questions: 1 What is factorization? What is the factoring method we have learned? 2. What are the differences and connections between factoring and integer multiplication? 3 You can do... for m2-4, m2+4m+4.

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Update Time: 2024-10-17

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"Using Formula Method to Factorize" PPT courseware