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Equations & Systems
medium
0:00.0
Solve for
x
x
x
in
x
2
−
9
=
0
x^2 - 9 = 0
x
2
−
9
=
0
.
A
3
3
3
B
−
3
-3
−
3
C
9
9
9
D
±
3
\pm 3
±
3
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