 By Mary Jane Sterling

From signed numbers to tale difficulties — calculate equations with easePractice is the foremost to bettering your algebra talents, and that is what this workbook is all approximately. This hands-on advisor specializes in assisting you resolve the various different types of algebra difficulties you are going to come across in a centred, step by step demeanour. With barely enough refresher factors prior to every one set of difficulties, this workbook exhibits you ways to paintings with fractions, exponents, factoring, linear and quadratic equations, inequalities, graphs, and more!100s of problems!Hundreds of perform routines and beneficial explanationsExplanations reflect instructing equipment and lecture room protocolsFocused, modular content material offered in step by step lessonsPractice on 1000's of Algebra I problemsReview key options and formulasGet entire solution reasons for all difficulties

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Extra info for Algebra I Workbook for Dummies, 2nd Edition (For Dummies (Math & Science))

Sample text

Rewrite the fractions , common denominator. , and 20. with a Solve It Rewrite the fractions , a common denominator. , and with Solve It Adding and Subtracting Fractions You can add fractions together or subtract one from another if they have a common denominator. After you find the common denominator and change the fractions to their equivalents, then you can add the numerators together or subtract them (keeping the denominators the same). Q. Q. A. + A. First find the common denominator, 24, and then complete the addition: + = .

The answer to this multiplication problem is the same as the answer to the original division problem. Chapter 3: Making Fractions and Decimals Behave Q. Q. A. First, reduce: The 25 and 30 have a common factor of 5, the 14 and 49 have a common factor of 7, the 6 and 27 have a common factor of 3, and the 5 and 10 have a common factor of 5. A. First, write the mixed numbers as improper fractions. Then reduce where possible and multiply. Reduce the 5 and 10 by dividing by 5. And then, to multiply the fractions, multiply all the numerators together and all the denominators together to make the new fraction: Q.

The answer is N Change to a fraction. The answer is because two digits repeat O Change to a fraction. The answer is because three digits repeat: P because . . . Simplify inside the parentheses first. 45 46 Part I: Getting Down to the Nitty-Gritty on Basic Operations Q . By the order of operations, you multiply first and then subtract 3 from the result. Chapter 4 Exploring Exponents In This Chapter ▶ Working with positive and negative exponents ▶ Recognizing the power of powers ▶ Operating on exponents ▶ Investigating scientific notation I n the big picture of mathematics, exponents are a fairly new discovery.