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Extraneous Solutions and Domain Checks
Grade Level
GMAT
Q.147 Extraneous Solutions and Domain Checks
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What is the solution set of (sqrt(x + 9) - 4)/(x - 7) = 0?
A
x = -9
B
No solution
C
x = 7
D
All real numbers except x = 7
E
x = 0
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