Name ____________________
Time: ________
Date ___ / ___ / ___
Score ________
MultRoots (Number Dojo Level 302)
High School Worksheet Set E
Instructions: Give yourself 5 minutes to complete as many problems as you can. Score this worksheet like a
Number Sense test, giving yourself 5 points for every correct answer, less 4 points for every skipped or incorrect
answer. High score is a 200.
1)
2)
3)
4)
5)
6)
7)
8)
9)
10)
11)
12)
13)
14)
15)
16)
17)
18)
19)
20)
____
The product of the roots of n2 - 4n - 5 = 0 is ____
The product of the roots of 2x2 - 6x - 9 = 0 is ____
The product of the roots of x2 - 25 = 0 is ______
The product of the roots of 5x2 - 2x - 3 = 0 is ____
The product of the roots of x2 - 5x - 36 = 0 is ____
The product of the roots of 2x2 + x - 3 = 0 is ____
The product of the roots of x2 - 49 = 0 is ______
The product of the roots of 3x2 - 2x - 8 = 0 is ____
The product of the roots of 3a2 - 8a - 3 = 0 is ____
The product of the roots of 7x2 - 19x - 6 = 0 is ___
The product of the roots of 3x2 - 2x - 5 = 0 is ____
The product of the roots of 4x2 + 5x = 0 is _____
The product of the roots of 3x2 - 11x + 10 = 0 is ___
The product of the roots of n2 + 5n - 14 = 0 is ____
The product of the roots of 6n2 + n - 5 = 0 is ____
Product of the roots of ax2 + 12x + 18 = 0 is -6; a = _
The product of the roots of 9x3 + x2 + 10x = 15 is __
The product of the roots of 2x3 - 7x2 + 5x - 14 = 0 is _
The product of the roots of (2x - 3)(3x - 8) = 0 is __
The product of the roots of 2x2 - 4x - 8 = 0 is
_____
The product of the roots of 5x2 + 4x - 3 = 0 is ____
The product of the roots of 4x3 - 2x2 + x - 1 = 0 is __
The product of the roots of 7x3 + 4x2 + 5x + 3 = 0 is _
The product of the roots of 3x3 - 4x2 - x - 2 = 0 is __
The product of the roots of 7x2 - 4x + 3 = 0 is ____
Product of roots: 4x4 - 3x3 + 3x2 - 4x + 3 = 0 is ____
Product of roots: 12x4 - 9x3 - 2x2 + 13x + 6 = 0 is __
The product of the roots of 3x2 + 4x - 5 = 0 is ____
The product of the roots of (2x - 3)(x - 6) = 0 is ___
The product of the roots of 7x3 - 2x2 - x - 3 = 0 is __
The product of the roots of (x + 3)2 = 0 is ______
The product of the roots of (2x - 3)3 = 0 is _____
The product of the roots of 2x2 - 7x + 8 = 0 is ____
The product of the roots of 3x3 - 2x2 + 5x + 2 = 0 is _
The product of the roots of 4x2 + 5x + 3 = 0 is ____
The product of the roots of 5x3 + 2x2 - 5x + 3 = 0 is _
The product of the roots of (2x - 3)(x + 4) = 0 is ___
The product of the roots of 2x3 + 5x2 - x - 6 = 0 is __
The product of the roots of (x + 5)2 - 3 = 0 is ____
21) The product of the roots of 3x2 + 8x = 3 is
22)
23)
24)
25)
26)
27)
28)
29)
30)
31)
32)
33)
34)
35)
36)
37)
38)
39)
40)
- - - - - - - - - - - - - - - Fold the bottom portion under - - - - - - - - - - - - - - Answer Key
1)
2)
3)
4)
5)
6)
7)
8)
-4
-5
-9/2 or -4.5
-25
-3/5 or -.6
-36
-3/2 or -1.5
-49
9)
10)
11)
12)
13)
14)
15)
16)
-8/3
-1
-6/7
-5/3
0
10/3
-14
-5/6
17)
18)
19)
20)
21)
22)
23)
24)
-3
5/3
7
4
-1
-3/5 or -.6
1/4 or .25
-3/7
25)
26)
27)
28)
29)
30)
31)
32)
2/3
3/7
¾ or .75
½ or .5
-5/3
9
3/7
9
© 2016 by Number Dojo, www.NumberDojo.com
33)
34)
35)
36)
37)
38)
39)
40)
27/8 or 3.375
4
-2/3
¾ or .75
-3/5 or -.6
-6
3
22