Alpha Teach Yourself Algebra I in 24 Hours by Jane Cook PDF

By Jane Cook

ISBN-10: 1101197552

ISBN-13: 9781101197554

The first step in complicated math is now the simplest.

Alpha educate your self Algebra I in 24 Hours presents readers with a based, self-paced, straight-forward instructional to algebra. it is the excellent textbook significant other for college students being affected by algebra, an exceptional primer for these seeking to get a head commence on an upcoming type, and a welcome refresher for fogeys tasked with aiding out with homework, all in 24 one-hour classes.

• Algebra is the second-most well known mathematic path for school- sure highschool scholars

• approximately all college-bound highschool scholars now take algebra

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But before we get to the rules, it might be helpful to know when you will use them. Hour 3 Real Numbers: Four Operations 22 Hour 3 You’ll see negative signs on some of the terms in the next examples. As you reach the end of this section, you will be able to simplify each of these problems: –1 + –10 = 9 + –7 = –2 + –8 + –11 = 3 + –9 + 14 = These examples are addition problems involving some negative and some positive numbers. Look closely at the first example: –1 + –10 = . ” This helps you realize that you are trying to add a negative number to another negative number.

The set of integers is infinite, which means it has no beginning or end, since there is always at least one integer smaller than the smallest one or at least one larger than the largest one you are considering. STRICTLY DEFINED The opposite of a number is the number with a different sign. The opposite of 2 is –2. The opposite of –6 is 6. In algebra books, the positive integers are often listed as {1, 2, 3, …} and the negative integers as {–1, –2, –3, …}, with the three dots showing that the numbers continue without an end.

Real Numbers: Properties and Rules 39 For now, learn how to simplify expressions that include reciprocals, such as the following problem: 1 3x – 3 1 Because 3 and are reciprocals, multiplying them must equal 1. The 3 expression is now 1 · x. Multiplying any number or term by 1 doesn’t change the number or term (the identity property of multiplication). So the final answer is x. When you see a multiplication problem that includes reciprocals, simplifying the problem is easy. Here are some examples of the reciprocal and identity properties of mul­ tiplication.

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Alpha Teach Yourself Algebra I in 24 Hours by Jane Cook


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