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GCD & LCM
medium
0:00.0
Find the GCD of
x
4
−
1
x^4 - 1
x
4
−
1
and
x
2
−
1
x^2 - 1
x
2
−
1
.
A
1
B
x
2
−
1
x^2-1
x
2
−
1
C
x
2
+
1
x^2+1
x
2
+
1
D
x
−
1
x-1
x
−
1
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