Concept explainers
Work all of the problems in this self-test without using a calculator. Then check your work by consulting the answers in the back of the book. Where weaknesses show up, use the reference that follows each answer to find the section in the test that provides the necessary review.
Problems 2–6 refer to the following polynomials:
(A) 3x – 4 (B) x + 2
(C) 2 – 3x2 (D) x3 + 8
4. Multiply (C) and (D).
Want to see the full answer?
Check out a sample textbook solutionChapter DPT Solutions
Calculus for Business, Economics, Life Sciences and Social Sciences Books a la Carte Edition Plus NEW MyLab Math with Pearson eText -- Access Card Package (13th Edition)
Additional Math Textbook Solutions
Mathematics with Applications In the Management, Natural, and Social Sciences (12th Edition)
Mathematics with Applications In the Management, Natural and Social Sciences (11th Edition)
Finite Mathematics (11th Edition)
Mathematics for the Trades: A Guided Approach (11th Edition) (What's New in Trade Math)
Finite Mathematics for Business, Economics, Life Sciences and Social Sciences
Pathways to Math Literacy (Loose Leaf)
- What is the LCD of 17/6x, 11/3x+3arrow_forwardFor Exercises 8–10, a. Simplify the expression. Do not rationalize the denominator. b. Find the values of x for which the expression equals zero. c. Find the values of x for which the denominator is zero. 4x(4x – 5) – 2x² (4) 8. -6x(6x + 1) – (–3x²)(6) (6x + 1)2 9. (4x – 5)? - 10. V4 – x² - -() 2)arrow_forwardFor Exercises 13–20, factor each expression.arrow_forward
- MODULE 2: LESSON 3 ASSIGNMENT Lesson 3: Solving Radical Equations Graphically 1. Solve each equation graphically. Describe the function(s) you graphed, and explain how you determined the solution from the graph. a. 2/5x + 32 =7 32 Answer:arrow_forwardIn Problems 5–12, tell whether the given rational expression is proper or improper. If improper, rewrite it as the sum of a polynomialand a proper rational expression.arrow_forwardBased on a grade 11 student, answer the following question: Expand the following 2x(3x - y + 1)arrow_forward
- Perform the following operations: 2. (2a – 5a3 + 3x2 – 5)/(x + 2) 3. (4x- 2r3+ x² – 5x + 8)/(x² – 2x – 1)arrow_forward5. Describe and correct the error in performing the given operation: (2x – 7) = (2x)³ – 73 = 8x – 343 (3x – 2x² + 4x – 8) – (5x² + 12x² – 3x – 4)arrow_forwardExpand and Simplify the following expressions:a. (9x + 7) (8x + 5) b. (5x + 2) (x – 3) c. (9x – 5) (8x + 7) d. (9x – 5) (7x – 3)arrow_forward
- Elementary AlgebraAlgebraISBN:9780998625713Author:Lynn Marecek, MaryAnne Anthony-SmithPublisher:OpenStax - Rice UniversityAlgebra: Structure And Method, Book 1AlgebraISBN:9780395977224Author:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. ColePublisher:McDougal Littell
- Glencoe Algebra 1, Student Edition, 9780079039897...AlgebraISBN:9780079039897Author:CarterPublisher:McGraw Hill