remainder factor theorems may 27 2009

17

Upload: ingroy

Post on 18-May-2015

385 views

Category:

Education


0 download

TRANSCRIPT

Page 1: Remainder Factor Theorems  May 27 2009
Page 2: Remainder Factor Theorems  May 27 2009

What are the factors of 15?

Page 3: Remainder Factor Theorems  May 27 2009

Is x ­ 3 a factor of  2x  ­ 4x ­ 3  2

Long division: 

Page 4: Remainder Factor Theorems  May 27 2009

Is x ­ 3 a factor of  2x  ­ 4x ­ 3  2

Synthetic Division: 

Page 5: Remainder Factor Theorems  May 27 2009

Remainder Theorem: 

If P(x) is a polynomial, then P(a) is equal to the remainder when P(x) is divided by x ­ a. 

Page 6: Remainder Factor Theorems  May 27 2009

Is x + 3 a factor of  x  ­ 10x  ­ 2x + 44 2

Page 7: Remainder Factor Theorems  May 27 2009

Factor Theorem: 

A polynomial P(x) has a factor x ­ a if and only if P(a) = 0

Page 8: Remainder Factor Theorems  May 27 2009

Determine whether x + 2 is a factor of

f(x) = x  ­ 6x ­ 43

Page 9: Remainder Factor Theorems  May 27 2009

Is x + 2 a factor of  x  + 4x  + 5x + 23 2

Page 10: Remainder Factor Theorems  May 27 2009

Divide  6x  + 16x  ­ 19x  ­ 43 2 by  x ­ 2

Page 11: Remainder Factor Theorems  May 27 2009

Divide x  ­ 10x  ­ 2x + 44 2 by  x + 3

Page 12: Remainder Factor Theorems  May 27 2009

Divide x  ­ 10x  ­ 2x + 44 2 by  x + 3

Page 13: Remainder Factor Theorems  May 27 2009
Page 14: Remainder Factor Theorems  May 27 2009

Completely factor

f(x) = x  ­ 2x  ­ 5x + 63 2

constantterm

Page 15: Remainder Factor Theorems  May 27 2009

Completely factor: f(x) = 2x  + 3x  ­ 8x + 33 2

(x ­ 1)(x + 3)(2x ­ 1)

Page 16: Remainder Factor Theorems  May 27 2009
Page 17: Remainder Factor Theorems  May 27 2009

Exercise 53

Questions 1 ­ 8