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x 2 - 5x + 4 I

x 2 - 5 x + 4

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I. x 2 - 5 x + 4. I. x 2 - 5 x + 4. x. x. I. x 2 - 5 x + 4. x. +4. +2. +1. - 4. - 2. - 1. x. +1. +2. +4. - 1. - 2. - 4. I. x 2 - 5 x + 4. x. +4. +2. +1. - 4. - 2. - 1. x. +1. +2. +4. - 1. - 2. - 4. I. x 2 - 5 x + 4. x. +4. +2. +1. - 4. - 2. - PowerPoint PPT Presentation

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Page 1: x 2  - 5 x  + 4

x2 - 5x + 4

I

Page 2: x 2  - 5 x  + 4

x2 - 5x + 4

x

x

I

Page 3: x 2  - 5 x  + 4

x2 - 5x + 4

x

x

I

+4

+1

+2

+2

+1

+4

-1-4 -2

-4-1 -2

Page 4: x 2  - 5 x  + 4

x2 - 5x + 4

x

x

I

+4

+1

+2

+2

+1

+4

-1-4 -2

-4-1 -2

Page 5: x 2  - 5 x  + 4

x2 - 5x + 4

x

x

I

+4

+1

+2

+2

+1

+4

-1-4 -2

-4-1 -2

Page 6: x 2  - 5 x  + 4

x2 - 5x + 4

-1

-4

x

x

I

+4

+1

+2

+2

+1

+4

-1-4 -2

-4-1 -2

Page 7: x 2  - 5 x  + 4

x2 - 5x + 4

-1

-4

x

x

-4x -x

I

+4

+1

+2

+2

+1

+4

-1-4 -2

-4-1 -2

Page 8: x 2  - 5 x  + 4

x2 - 5x + 4 = (x-4)(x-1)

-1

-4

x

x

-4x -x

I

+4

+1

+2

+2

+1

+4

-1-4 -2

-4-1 -2

Page 9: x 2  - 5 x  + 4

2x2 + 5x - 12

II

Page 10: x 2  - 5 x  + 4

2x2 + 5x - 12

x

2x

II

Page 11: x 2  - 5 x  + 4

2x2 + 5x - 12

x

2x

II

+12

-1

+6

-2

+4

-3

+1+2

-12-4 -6

-1 -2 -3 -12-4 -6

+12 +6 +4 +1+2

+3

+3

Page 12: x 2  - 5 x  + 4

2x2 + 5x - 12

x

2x

II

+12

-1

+6

-2

+4

-3

+1+3 +2

-12-4 -6

-1 -2 -3 -12-4 -6

+12 +6 +4 +1+3 +2

Page 13: x 2  - 5 x  + 4

+3

+3

2x2 + 5x - 12

-1

+12

x

2x

II

+12

-1

+6

-2

+4

-3

+1+2

-12-4 -6

-1 -2 -3 -12-4 -6

+12 +6 +4 +1+2

Page 14: x 2  - 5 x  + 4

+3

+3

2x2 + 5x - 12

-1

+12

x

2x

+12x -2x

II

+12

-1

+6

-2

+4

-3

+1+2

-12-4 -6

-1 -2 -3 -12-4 -6

+12 +6 +4 +1+2

Page 15: x 2  - 5 x  + 4

+3

+3

2x2 + 5x - 12

x

2x

II

+12

-1

+6

-2

+4

-3

+1+2

-12-4 -6

-1 -2 -3 -12-4 -6

+12 +6 +4 +1+2

Page 16: x 2  - 5 x  + 4

+3

+3

2x2 + 5x - 12

-2

+6

x

2x

II

+12

-1

+6

-2

+4

-3

+1+2

-12-4 -6

-1 -2 -3 -12-4 -6

+12 +6 +4 +1+2

Page 17: x 2  - 5 x  + 4

+3

+3

2x2 + 5x - 12

-2

+6

x

2x

+6x -4x

II

+12

-1

+6

-2

+4

-3

+1+2

-12-4 -6

-1 -2 -3 -12-4 -6

+12 +6 +4 +1+2

Page 18: x 2  - 5 x  + 4

+3

+3

2x2 + 5x - 12

x

2x

II

+12

-1

+6

-2

+4

-3

+1+2

-12-4 -6

-1 -2 -3 -12-4 -6

+12 +6 +4 +1+2

Page 19: x 2  - 5 x  + 4

+3

+3

2x2 + 5x - 12

-3

+4

x

2x

II

+12

-1

+6

-2

+4

-3

+1+2

-12-4 -6

-1 -2 -3 -12-4 -6

+12 +6 +4 +1+2

Page 20: x 2  - 5 x  + 4

+3

+3

2x2 + 5x - 12

-3

+4

x

2x

+4x -6x

II

+12

-1

+6

-2

+4

-3

+1+2

-12-4 -6

-1 -2 -3 -12-4 -6

+12 +6 +4 +1+2

Page 21: x 2  - 5 x  + 4

+3

+3

2x2 + 5x - 12

x

2x

II

+12

-1

+6

-2

+4

-3

+1+2

-12-4 -6

-1 -2 -3 -12-4 -6

+12 +6 +4 +1+2

Page 22: x 2  - 5 x  + 4

+3

+3

2x2 + 5x - 12

+12

-1

x

2x

II

+12

-1

+6

-2

+4

-3

+1+2

-12-4 -6

-1 -2 -3 -12-4 -6

+12 +6 +4 +1+2

Page 23: x 2  - 5 x  + 4

+3

+3

2x2 + 5x - 12

+12

-1

x

2x

-x +24x

II

+12

-1

+6

-2

+4

-3

+1+2

-12-4 -6

-1 -2 -3 -12-4 -6

+12 +6 +4 +1+2

Page 24: x 2  - 5 x  + 4

+3

+3

2x2 + 5x - 12

x

2x

II

+12

-1

+6

-2

+4

-3

+1+2

-12-4 -6

-1 -2 -3 -12-4 -6

+12 +6 +4 +1+2

Page 25: x 2  - 5 x  + 4

+3

+3

2x2 + 5x - 12

+6

-2

x

2x

II

+12

-1

+6

-2

+4

-3

+1+2

-12-4 -6

-1 -2 -3 -12-4 -6

+12 +6 +4 +1+2

Page 26: x 2  - 5 x  + 4

+3

+3

2x2 + 5x - 12

+6

-2

x

2x

-2x +12x

II

+12

-1

+6

-2

+4

-3

+1+2

-12-4 -6

-1 -2 -3 -12-4 -6

+12 +6 +4 +1+2

Page 27: x 2  - 5 x  + 4

+3

+3

2x2 + 5x - 12

x

2x

II

+12

-1

+6

-2

+4

-3

+1+2

-12-4 -6

-1 -2 -3 -12-4 -6

+12 +6 +4 +1+2

Page 28: x 2  - 5 x  + 4

+3

+3

2x2 + 5x - 12

+4

-3

x

2x

II

+12

-1

+6

-2

+4

-3

+1+2

-12-4 -6

-1 -2 -3 -12-4 -6

+12 +6 +4 +1+2

Page 29: x 2  - 5 x  + 4

+3

+3

2x2 + 5x - 12

+4

-3

x

2x

-3x +8x

II

+12

-1

+6

-2

+4

-3

+1+2

-12-4 -6

-1 -2 -3 -12-4 -6

+12 +6 +4 +1+2

Page 30: x 2  - 5 x  + 4

+3

+3

2x2 + 5x - 12 = (2x-3)(x+4)

+4

-3

x

2x

-3x +8x

II

+12

-1

+6

-2

+4

-3

+1+2

-12-4 -6

-1 -2 -3 -12-4 -6

+12 +6 +4 +1+2

Page 31: x 2  - 5 x  + 4

3x2 - 10x - 8

III

Page 32: x 2  - 5 x  + 4

3x2 - 10x - 8

x

3x

III

Page 33: x 2  - 5 x  + 4

3x2 - 10x - 8

x

3x

III

+8

-1

+4

-2

+2

-4

+1

-8

-1 -2 -4 -8

+8 +4 +2 +1

Page 34: x 2  - 5 x  + 4

3x2 - 10x - 8

x

3x

III

+8

-1

+4

-2

+2

-4

+1

-8

-1 -2 -4 -8

+8 +4 +2 +1

Page 35: x 2  - 5 x  + 4

3x2 - 10x - 8

-2

+4

x

3x

III

+8

-1

+4

-2

+2

-4

+1

-8

-1 -2 -4 -8

+8 +4 +2 +1

Page 36: x 2  - 5 x  + 4

3x2 - 10x - 8

-2

+4

x

3x

+4x -6x

III

+8

-1

+4

-2

+2

-4

+1

-8

-1 -2 -4 -8

+8 +4 +2 +1

Page 37: x 2  - 5 x  + 4

3x2 - 10x - 8

x

3x

III

+8

-1

+4

-2

+2

-4

+1

-8

-1 -2 -4 -8

+8 +4 +2 +1

Page 38: x 2  - 5 x  + 4

3x2 - 10x - 8

-4

+2

x

3x

III

+8

-1

+4

-2

+2

-4

+1

-8

-1 -2 -4 -8

+8 +4 +2 +1

Page 39: x 2  - 5 x  + 4

3x2 - 10x - 8

-4

+2

x

3x

+2x -12x

III

+8

-1

+4

-2

+2

-4

+1

-8

-1 -2 -4 -8

+8 +4 +2 +1

Page 40: x 2  - 5 x  + 4

3x2 - 10x - 8 = (3x+2)(x-4)

-4

+2

x

3x

+2x -12x

III

+8

-1

+4

-2

+2

-4

+1

-8

-1 -2 -4 -8

+8 +4 +2 +1

Page 41: x 2  - 5 x  + 4

IV

課本p.136

p.137

p.139

p.140

p.146

習作

例題 1 - 隨堂練習 (2)

例題 2 - 隨堂練習

例題 3 - 隨堂練習 (1)

例題 4 - 隨堂練習

自我評量 - (2)~(6)

( 4)(2 3(1) )x x

(1) (2)( 5)( 6) ( 1)( 2)x x x x

( 2)((2 9) )x x

2(2)

(3)

(4)

( 3)

( 3)( 12)

( 4)

(5

( 9)

)

(

( 4)(3 7)

( 3) 4) 5 )6 (

x

x x

x x

x x

x x

(1) (2)( 9)(2 1) ( 5)(2 1)x x x x