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Online Quiz (Worksheet A B C D)

Questions Per Quiz = 2 4 6 8 10

Grade 7 - Mathematics
4.28 Simplification - I

Example:
8x3+7x2-9x+2, find the value of given expression when x=1.

Solution:
8(1)3+7(1)2-9(1)+2.
= 8.1+7.1-9+2
= 8+7-9+2
= 8.


Directions: Substitute the x value and find the value of expression. Also write atleast ten examples of your own.
Q 1: 2x3-9x2+2x-1, find the value of given expression when x=3.
-22
23
22
-23

Q 2: 2x3+8x2-9x-20, find the value of given expression when x=3.
76
75
78
79

Q 3: 2x3-3x2-3x+12, find the value of given expression when x=4.
78
80
86
82

Q 4: 8x3-4x2-8x-9, find the value of given expression when x=1.
13
-13
-15
15

Q 5: 5x3+6x2-9x+2, find the value of given expression when x=3.
164
160
166
162

Q 6: 9x3+9x2+9x+9, find the value of given expression when x=0.
9
6
8
3

Q 7: 9x3-6x2+8x+9, find the value of given expression when x=2.
46
40
43
41

Q 8: 2x+9x+5x+2, find the value of given expression when x=1.
-18
-19
19
18

Question 9: This question is available to subscribers only!

Question 10: This question is available to subscribers only!


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