Linear Algebra and Its Applications (Lay)
Key differences between 5th and 4th editions
 Time lapse between current and previous editions of Lay's Linear Algebra and Its Applications: 4 years (2015 vs 2011).
 The main difference between the Fifth and Fourth editions is the updated exercises, particularly the computational exercises. Also, many additional resources are provided through the MyMathLab.
 Theoretical material in the Fifth Edition for the most part remains unchanged.
5th Edition of
Linear Algebra and Its Applications (Lay)
Hardcover, 576 pages
ISBN10: 032198238X
ISBN13: 9780321982384
Published by: Pearson, January 03, 2015
Book Store  New  Used  Rent 
 $168.94

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 $204.50 
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$104.90 due: Dec 21
$94.41 due: Dec 19
$83.92 due: Nov 19

with MyMathLab with Pearson eText
Hardcover, 576 pages
ISBN10: 0134022696
ISBN13: 9780134022697
Published by: Pearson, January 06, 2015
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 $204.45

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 $230.37 
From: $78.88 
$212.81 due: Dec 21

Books a la Carte with MyMathLab with Pearson eText
Loose Leaf, 494 pages
ISBN10: 0321989929
ISBN13: 9780321989925
Published by: Pearson, January 08, 2015
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 $152.70

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$203.19 due: Dec 21

Loose Leaf, 576 pages
ISBN10: 0321982657
ISBN13: 9780321982650
Published by: Pearson, January 06, 2015
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 $105.89

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 $184.51 

$171.20 due: Dec 21

4th Edition of
Linear Algebra and Its Applications
eBook, 576 pages
eBook ISBN: 9780321790026
Published by: Pearson, April 13, 2011
Book Store  Price 
 Available

 $47.29 
Hardcover, 576 pages
ISBN10: 0321385179
ISBN13: 9780321385178
Published by: Pearson, January 30, 2011
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 $224.00

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$14.85 due: Dec 21
$14.11 due: Dec 19
$13.37 due: Nov 19

Books a la Carte Edition
Loose Leaf, 576 pages
ISBN10: 0321780728
ISBN13: 9780321780720
Published by: Pearson, May 09, 2011
Book Store  New  Used  Rent 
 $361.69

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Books a la Carte edition with NEW MyMathLab with Pearson eText
Loose Leaf, 492 pages
ISBN10: 0321836146
ISBN13: 9780321836144
Published by: Pearson, December 26, 2011
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 $700.00

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3rd Edition of
Linear Algebra & Its Applications
Custom Edition for the Univeristy of Buffalo
Hardcover, 492 pages
ISBN10: 0536827222
ISBN13: 9780536827227
Published by: Pearson Custom Pub, January 31, 2005
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 $101.04 

$82.50 due: Dec 21
$77.35 due: Dec 19
$72.19 due: Nov 19

Updated Edition (Book & CDROM)
Hardcover, 576 pages
ISBN10: 0321287134
ISBN13: 9780321287137
Published by: Addison Wesley, September 01, 2005
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 $57.28

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Hardcover, 576 pages
ISBN10: 0201709708
ISBN13: 9780201709704
Published by: Addison Wesley, July 18, 2002
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 $108.71

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From: $19.00 
$44.80 due: Dec 21
$38.40 due: Dec 19
$32.00 due: Nov 19

Saving advice
Hardcover
 Used 5th edition can save you $103.84 over the new one.

Used previous 4th edition costs $41.91 less than the used 5th.