KOVALSKY
Math JORDAN - 112 Spring 2010
WeBWorK Assignment Lesson 03 - Factoring and Simplification Due Date: 09/13/2010 at 11:59pm CDT. The primary purpose of WeBWorK is to let you know that you are getting the correct answer or to alert you if you are making some kind of mistake. You can use the Feedback button on each problem page to send e-mail to the course instructors. 1. (1 pt) Factor the polynomial or expression given. If you have more than one factor, separate them with commas. The factors of x2 - 36 are The factors of a2 b2 - c2 are
x-(-10), x-(-7) x-(-2), x-(-7)
4. (1 pt) Factor the polynomial or expression given. If you have more than one factor, separate them with commas. Choose the factors so they contain no fractional coefficients. The factors of 5h2 + 16h + 3 are
HINT: The instructions say "If you have more than one factor, separate them with commas."
Correct Answers: x-6, x+6 a*b-c, a*b+c
The factors of 3h2 - 13h + 4 are
2. (1 pt)
Factor the polynomial or expression given. If you have more than one factor, separate them with commas. The factors of 36 - a2 are The factors of 36 - (a + 5)2 are HINT: The instructions say "If you have more than one factor, separate them with commas."
Correct Answers: 6-a, 6+a 1-a, 11+a
HINT: The instructions say "If you have more than one factor, separate them with commas."
Correct Answers: 1*h+3 5*h+1, 3*h+(-1), 1*h+(-4)
5. (1 pt) a+b to lowest terms. az8 + bz8 Reduced Fraction =
Reduce the fraction
3. (1 pt)
Correct Answers: 1/(z^8)
Factor the polynomial or expression given. If you have more than one factor, separate them with commas. The factors of x2 + 17x + 70 are
6. (1 pt) 30ab - 18b2 to lowest terms. 20a2 - 12ab Reduced Fraction =
Reduce the fraction The factors of x2 + 9x + 14 are
HINT: The instructions say "If you have more than one factor, separate them with commas."
Correct Answers:
1
Correct Answers: 6*b/(4*a)
7. (1 pt) Carry out the indicated operations and simplify where possible. 5 z2 - 16 = z-4 z+4
Correct Answers: 5
10. (1 pt) Carry out the indicated operations and simplify where possible. 1 - y12 x2 = 1 1 x+y
8. (1 pt)
Correct Answers: (-x+y)/(x*y)
11. (1 pt)
Carry out the indicated operations and simplify where possible. 1 4 + = z+2 z+4
Write without negative exponents. -3 -1 h +8 =
Correct Answers: h^3/(1+8*h^3)
Correct Answers: (5*z+12)/[(z+2)*(z+4)]
9. (1 pt)
12. (1 pt)
Carry out the indicated operations and simplify where possible. 81 t -t = 9 t +1
Carry out the indicated operations and simplify where possible. a (11a - 11b)-1 + b (11b - 11a)-1 =
Correct Answers: -t+9
c Generated by the WeBWorK system WeBWorK Team, Department of Mathematics, University of Rochester
Correct Answers: 0.0909091
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