Editor
Editor
 Sep 18, 2022
0
If f(x)=2x+1, $g(x)=x^{2}-1$ and fog(x)=7, then x=
Difficulty: Easy
A: 
2
B: 
-2
C: 
2 and -2
D: 
None
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NETNUST Entry TestMathematicsFunctions and Limits