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

Q 2: 2x3-9x2+2x-1, find the value of given expression when x=3.
-23
-22
23
22

Q 3: 9x3-6x2+8x+9, find the value of given expression when x=2.
43
41
46
40

Q 4: 5x3+6x2-9x+2, find the value of given expression when x=3.
160
164
166
162

Q 5: 8x3-4x2-8x-9, find the value of given expression when x=1.
-15
15
-13
13

Q 6: 5x3-8x2+5x+9, find the value of given expression when x=2.
25
26
27
23

Q 7: 2x3-3x2-3x+12, find the value of given expression when x=4.
86
82
80
78

Q 8: 6x3-6x2+7x-8, find the value of given expression when x=2.
15
20
25
30

Question 9: This question is available to subscribers only!

Question 10: This question is available to subscribers only!


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