By Mary Jane Sterling

ISBN-10: 0470559640

ISBN-13: 9780470559642

I wished a short refresher simply because i'm activity searching and this occasionally comes up on interviews because of my profession. I havent needed to use this kind of math for really your time even though. I dont disagree in spite of the fact that with a few reviewers who've complained that the cloth just isn't written for novices. I needed to fight with a lot of the booklet and needed to move over definite chapters greater than as soon as. additionally, there is not approximately adequate rationalization of yes key strategies. you're anticipated, for instance, to simply accept advanced equation is an equation with an influence no more than 2 within which the equation is determined to equivalent 0. but the accompanying workbook used to be an excellent support; actually, there's simply enough rationalization of every inspiration in each one bankruptcy of the workbook that i may virtually suggest purchasing the workbook in addition to the most textbook. in any case, although it was once a fight from time to time, i used to be in a position to educate myself algebra from this ebook, and used to be in a position to take my placement examination with a passing grade. Like another commenters. i purchased this booklet simply because i'm trying to find a brand new task 2 years after leaving my past one, and used to be steered that I could be able to resolution questions about it. i used to be panicked, simply because i used to be by no means a robust math pupil and have not taken a math category in additional than 20 years.

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**Extra info for Algebra I For Dummies (For Dummies (Math & Science))**

**Example text**

Indd 23 4/19/10 2:14 PM 24 Part I: Starting Off with the Basics Here are some examples of the factorial operation: ✓ 3! = 3 · 2 · 1 = 6 ✓ 6! = 6 · 5 · 4 · 3 · 2 · 1 = 720 ✓ 7! = 7 · 6 · 5 · 4 · 3 · 2 · 1 = 5,040 The value of 0! is 1. This result doesn’t really fit the rule for computing the factorial, but the mathematicians who first described the factorial operation designated that 0! is equal to 1 so that it worked with their formulas involving permutations, combinations, and probability. Getting the most for your math with the greatest integer You may have never used the greatest integer function before, but you’ve certainly been its victim.

Associating and Commuting with Expressions Algebra operations follow certain rules, and those rules have certain properties. The properties usually make computations easier. In this section, I talk about two of those properties — the commutative property and the associative property. Reordering operations: The commutative property Before discussing the commutative property, take a look at the word commute. You probably commute to work or school and know that whether you’re traveling from home to work or from work to home, the distance is the same: The distance doesn’t change because you change directions (although getting home during rush hour may make that distance seem longer).

Certain rules have to be followed so that the fraction maintains its integrity; the fraction has to have the same value as it did originally. indd 40 4/16/10 11:04 AM Chapter 3: Figuring Out Fractions and Dealing with Decimals 41 To reduce fractions to their lowest terms, follow these steps: 1. Look for numbers that evenly divide both the numerator and denominator. If you find more than one number that divides both evenly, choose the largest. 2. Divide both the numerator and denominator by the number you chose, and put the results in their corresponding positions.

### Algebra I For Dummies (For Dummies (Math & Science)) by Mary Jane Sterling

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