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Checking Domains and Constraints After Solving
Worksheet
Grade Level
Algebra II
ALG2.18 Checking Domains and Constraints After Solving
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🔴 Hard
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A model for side length gives s
2
- 6s = 16, so a student finds s = 8 and s = -2. Why is only one solution kept?
A
Because squaring always removes one root
B
Because side length must be positive
C
Because -2 makes the equation undefined
D
Because 8 is even
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