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Rational Expressions
hard
0:00.0
Simplify
x
3
−
1
x
2
+
x
+
1
\frac{x^3-1}{x^2+x+1}
x
2
+
x
+
1
x
3
−
1
.
A
x
−
1
x-1
x
−
1
B
x
+
1
x+1
x
+
1
C
x
2
−
1
x^2-1
x
2
−
1
D
x
2
+
1
x^2+1
x
2
+
1
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