Q 7.82 Factor:聽18w2-39w+6... [FREE SOLUTION]

91影视

Elementary Algebra

Lynn Marecek, MaryAnne Anthony-Smith

$Math Studyset 91影视 Explanations$ Math

2nd Edition 路 1240 pages

ISBN: 9780998625713

Chapter 7: Q 7.82 (page 847)

Factor: $18 w^{2} - 39 w + 6$

Short Answer

Expert verified

The factorization of $18 w^{2} - 39 w + 18$ is $3 (3 w - 2) (2 w - 3)$

Step by step solution

Step 1. Given information

Given expression is $18 w^{2} - 39 w + 18$

Step 2. Find the Greatest Common Factor.

Greatest Common Factor is $3$

$18 w^{2} - 39 w + 18 = 3 (6 w^{2} - 13 w + 6)$

Step 3. Find the product of a×c

$a 脳 c = 6 脳 6 = 36$

Step 4. Find the last terms of the binomials.

Find the numbers that multiply to $36$ and add to $- 13$

Factors of 36	Sum of factors
-4, -9	-4 + (-9) = -13

Step 5. Factorization

Use $- 4$ and $- 9$ as the last terms of the binomials.

$3 (6 w^{2} - 4 w - 9 w + 6) = 3 (2 w (3 w - 2) - 3 (3 w - 2)) = 3 (3 w - 2) (2 w - 3)$

Step 6. Check

$3 (3 w - 2) (2 w - 3) = 3 (6 w^{2} - 4 w - 9 w + 6) = 3 (6 w^{2} - 13 w + 6) = 18 w^{2} - 39 w + 18$

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91影视

Factor: $18 w^{2} - 39 w + 6$

Short Answer

Step by step solution

Step 1. Given information

Step 2. Find the Greatest Common Factor.

Step 3. Find the product of a×c

Step 4. Find the last terms of the binomials.

Step 5. Factorization

Step 6. Check

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91影视

Factor:18w2-39w+6

Short Answer

Step by step solution

Step 1. Given information

Step 2. Find the Greatest Common Factor.

Step 3. Find the product of a×c

Step 4. Find the last terms of the binomials.

Step 5. Factorization

Step 6. Check

One App. One Place for Learning.

Most popular questions from this chapter

Recommended explanations on Math Textbooks

Probability and Statistics

Mechanics Maths

Calculus

Applied Mathematics

Pure Maths

Discrete Mathematics

Study anywhere. Anytime. Across all devices.

Factor: $18 w^{2} - 39 w + 6$