Q32. Find each product or quotient.2a... [FREE SOLUTION]

91影视

Algebra 1

Carter, Cuevas, Day, Holiday, Luchin

$Math Studyset 91影视 Explanations$ Math

Student Edition 路 801 pages

ISBN: 9780078884801

Chapter 11: Q32. (page 729)

Find each product or quotient.
$\frac{2 a^{2} + 7 a 鈭� 15}{a + 5} 梅 \frac{9 a^{2} 鈭� 4}{3 a + 2}$

Short Answer

Expert verified

The simplified expression is $\frac{2 a 鈭� 3}{3 a 鈭� 2}$ .

Step by step solution

Step 1. Define the concept.

Multiplying rational expression: - Let a, b, c, and d be polynomials with $b 鈮� 0$ and $d 鈮� 0$ . Then $\frac{a}{b} 鈰� \frac{c}{d} = \frac{a c}{b d}$ .

Dividing rational expression: - Let a, b, c, and d be polynomials with $b 鈮� 0$ , $c 鈮� 0$ and $d 鈮� 0$ . Then $\frac{a}{b} 梅 \frac{c}{d} = \frac{a}{b} 鈰� \frac{d}{c} = \frac{a d}{b c}$ .

Step 2. Multiply by the reciprocal of 9a2−43a+2.

First multiply by the reciprocal of $\frac{9 a^{2} 鈭� 4}{3 a + 2}$ and then factor the expressions in numerator and denominator.

role="math" localid="1648060380025" $\frac{2 a^{2} + 7 a 鈭� 15}{a + 5} 梅 \frac{9 a^{2} 鈭� 4}{3 a + 2} = \frac{2 a^{2} + 7 a 鈭� 15}{a + 5} 脳 \frac{3 a + 2}{9 a^{2} 鈭� 4} = \frac{(2 a 鈭� 3) (a + 5)}{a + 5} 脳 \frac{3 a + 2}{(3 a + 2) (3 a 鈭� 2)}$

Step 3. Simplify the expression.

Further simplify the expression by cancelling out the common factors $a + 5$ and $3 a + 2$ .

role="math" localid="1648060503108" $\frac{2 a^{2} + 7 a 鈭� 15}{a + 5} 梅 \frac{9 a^{2} 鈭� 4}{3 a + 2} = \frac{(2 a 鈭� 3) (a + 5)}{a + 5} 脳 \frac{3 a + 2}{(3 a + 2) (3 a 鈭� 2)} = \frac{2 a 鈭� 3}{3 a 鈭� 2}$

Therefore, the simplified expression is $\frac{2 a 鈭� 3}{3 a 鈭� 2}$ .

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91影视

Find each product or quotient.
$\frac{2 a^{2} + 7 a 鈭� 15}{a + 5} 梅 \frac{9 a^{2} 鈭� 4}{3 a + 2}$

Short Answer

Step by step solution

Step 1. Define the concept.

Step 2. Multiply by the reciprocal of 9a2−43a+2.

Step 3. Simplify the expression.

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91影视

Find each product or quotient.2a2+7a鈭�15a+5梅9a2鈭�43a+2

Short Answer

Step by step solution

Step 1. Define the concept.

Step 2. Multiply by the reciprocal of 9a2−43a+2.

Step 3. Simplify the expression.

One App. One Place for Learning.

Most popular questions from this chapter

Recommended explanations on Math Textbooks

Statistics

Probability and Statistics

Pure Maths

Logic and Functions

Applied Mathematics

Mechanics Maths

Study anywhere. Anytime. Across all devices.

Find each product or quotient.
$\frac{2 a^{2} + 7 a 鈭� 15}{a + 5} 梅 \frac{9 a^{2} 鈭� 4}{3 a + 2}$