math 221 week 4

Question 1. 1. The video Example 36, Dividing a Polynomial by a Binomial: With a Division Sign Between Polynomial and Binomial, located in the media section of Chapter 4, the presenter shows that we must put the terms in descending order and puts in a place holder for one of the terms. Which term is zero (0)? (Points : 1)

       the w-cubed term

       the w-squared term

       the w term

       none of the terms are zero

Question 2. 2. The presenter of Example 58, Subtraction of Polynomials, which is located in the media section of Chapter 4, the example has two sets of parentheses. When you remove the parentheses, the signs of the terms in the second parentheses are opposites since we have to distribute a –1 to each term in the parentheses. The next step is to ____. (Points : 1)

       change all the signs again

       put the parentheses back into the problem

       write terms in descending order, adding like terms

       add the coefficients

Question 3. 3. The presenter of Example 46, The Rules for Integral Exponents, which is located in the media section of Chapter 4, says that the exponent –1 does not have power of the 2 because it is not in parentheses. (Points : 1)

       True

       False

Question 4. 4. When solving problem using the formula in the video, Example 89, Applications, which is located in the media section of Chapter 4, the D represents _________. (Points : 1)

       the denominator.

       the distributive property.

       the distance.

       A term with a coefficient of zero should not be written.

Question 5. 5. The presenter of Example 88, Multiplying 3 Binomials, located in the media section of Chapter 4, first used the FOIL method to multiply the first two binomials. She then used _________ to multiply the third binomial. (Points : 1)

       the FOIL method

       the distributive property

       combining like terms

       trial and error