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