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Question 1 of 5
Evaluate 3a-b3a−b using the following values:
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Simply substitute the given value for the variable.
aa |
== |
55 |
bb |
== |
33 |
cc |
== |
22 |
33aa -−bb |
== |
(3×(3×55)-)−33 |
|
== |
15-315−3 |
3×5=153×5=15 |
|
== |
1212 |
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Question 2 of 5
Evaluate a2-ca2−c using the following values:
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Simply substitute the given value for the variable.
a2−c |
= |
52−2 |
|
= |
25-2 |
52=5×5=25 |
|
= |
23 |
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Question 3 of 5
Evaluate abc2 using the following values:
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Simply substitute the given value for the variable.
abc2 |
= |
5×3×22 |
|
= |
5×3×4 |
22=2×2=4 |
|
= |
15×4 |
5×3=15 |
|
= |
60 |
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Question 4 of 5
Evaluate c(a-1)2 using the following values:
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Simply substitute the given value for the variable.
c(a -1)2 |
= |
2(5-1)2 |
|
= |
2(4)2 |
5-1=4 |
|
= |
2×16 |
42=4×4=16 |
|
= |
32 |
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Question 5 of 5
Evaluate 2a+bc2-4c using the following values:
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Simply substitute the given value for the variable.
2a+bc2−4c |
= |
2(5)+(3)(2)2−4(2) |
|
= |
10+(3×4)-8 |
22=2×2=4 |
|
= |
10+12-8 |
3×4=12 |
|
= |
22-8 |
|
= |
14 |