Editor
Editor
 Sep 18, 2022
0
If f(x)=2x+1 and $g(x)=x^{2}-1$ then gf=
Difficulty: Easy
A: 
$(2x+1)^{2}$
B: 
2x
C: 
$2(x^{2}-1)$
D: 
$4x^{2}+4x$
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NETNUST Entry TestMathematicsFunctions and Limits