Beginning Algebra, 11th Edition

Exercises 61– 82 involve factoring by grouping (Section ...

93.Concept Check Which one of these rational expressions is notequivalent to? A. B. C. D. 94.Concept Check Make the correct choi ...

SECTION 7.2 Multiplying and Dividing Rational Expressions 429 OBJECTIVES Multiplying and Dividing Rational Expressions 7.2 1 Mul ...

Multiplying Rational Expressions Multiply. Write the answer in lowest terms. Multiply numerators. Multiply denominators. Factor. ...

Dividing Rational Expressions Divide. Write the answer in lowest terms. Multiply by the reciprocal. Power rule for exponents Mul ...

Dividing Rational Expressions Divide. Write the answer in lowest terms. Multiply by the reciprocal. Multiply numerators. Multipl ...

SECTION 7.2 Multiplying and Dividing Rational Expressions 433 Complete solution available on the Video Resources on DVD 1.Concep ...

Brain Busters Exercises 55 – 60 involve grouping symbols (Section 1.2),factoring by ...

SECTION 7.3 Least Common Denominators 435 OBJECTIVES Least Common Denominators 7.3 1 Find the least common denominator for a gro ...

Finding the LCD Find the LCD for and Step 1 Factor each denominator. Step 2 The greatest number of times 2 appears is two, the g ...

OBJECTIVE 2 Write equivalent rational expressions.Once the LCD has been found, the next step in preparing to add or subtract two ...

(b) Factor the denominator in each rational expression. 12 p p 1 p+ 82 = ? p 1 p+ 821 p- 42 12 p p^2 + 8 p = ? p^3 + 4 p^2 - 32 ...

, 26. , , , 28. , , , 30. , , 32. , 33. , , 35. , 36. , , 38. , , 40. , , , , , , , , , 16 z^2 + 2 z ...

Rewrite each rational expression with the indicated denominator. See Examples 4 and 5. 6 ...

Adding Rational Expressions (Same Denominator) Add. Write each answer in lowest terms. (a) (b) The denominators are the same, so ...

Step 3 Add the numerators. The LCD is the denominator. Step 4 Write in lowest terms if necessary. NOW TRY Adding Rational Expres ...

Multiply. Combine like terms. The numerator cannot be factored here, so the expression is in lowest terms. NOW TRY NOTE If the f ...

Subtracting Rational Expressions (Same Denominator) Subtract. Write the answer in lowest terms. Subtract numerators. Keep the sa ...

SECTION 7.4 Adding and Subtracting Rational Expressions 445 Subtract numerators. Distributive property Combine like terms. Facto ...

Note: When adding and subtracting rational expressions, several different equivalent forms of the answer often exist. If your an ...