Lesson 40a.

NOTE 1: Be sure to read Homework Format, Homework Writing Policy, and Explanations Expected BEFORE writing up your solutions to be turned in.

NOTE 2: When two or more Lessons are to be turned in on the same day, please staple the Lessons separately and turn them in separately.

Due Friday, November 13.

Sect. 5.5:
  1. Solve the equation  x3 - 4x = 0.

  2. Check your answers to the preceding problem by substituting your answers into the left side of the given equation and show that you get the right side (this is the way answers have ALWAYS been checked in class).
    ALSO check to see that your answer(s) are consistent with the graph of the given polynomial on the left hand side of the equation (you can use your calculator to draw the graph).

    COMMENT. When a written homework assignment asks you to CHECK an answer, you should SHOW on your paper the check that you do. Don't just leave it to the grader's imagination to guess that you did the check requested. Of course, the check should be done neatly and legibly, so the grader can understand what you are doing.

  3. Solve the equation
    x3 (x + 1/2) - 4x(x + 1/2) = 0.

  4. Solve Problem 1 given in Exponential/Logarithmic Equations (pdf document).
    (This was handed out in class on Friday, Nov 6.)

NOTE 1: Be sure to read Homework Format, Homework Writing Policy, and Explanations Expected BEFORE writing up your solutions to be turned in.

NOTE: As stated on the Course Home Page, all due dates are tentative. Assignments, or parts of assignments, may be postponed to a later date.


Last modified Nov 12, 2009 8:44 PM

Go to Lesson 39 (due Nov 13).

Go to Lesson 41 (due Nov 18).

Back to Course Home Page