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Diophantine Equations
easy
0:00.0
Which of these satisfy
x
2
−
1
=
0
x^2 - 1 = 0
x
2
−
1
=
0
?
A
x
=
1
x = 1
x
=
1
B
x
=
−
1
x = -1
x
=
−
1
C
x
=
0
x = 0
x
=
0
D
x
=
2
x = 2
x
=
2
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