Answer:
Exact Form:
x
=
±
√
15
+
3
Decimal Form:
x
=
6.87298334
…
,
−
0.87298334
…
Explanation:
1. Pershing
2. Ferdinand
3. Versailles
4. Harding
5. Wilson
6. Urbanization
7. Prohibition
8. Isolationism
9. Bootlegging
10. Fourteen Points
11. League of Nations
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