Mathematics
Senior High
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式をときたいのですが途中までしか分かりません。2枚目のようになるはずなのです。教えてください、

(1 11 11. 11 = }} 2"-²2"-1 + 2"-²2"-2h-2 27-2.2 +22n-2-27-2 224 2" 4 み 1 (22n+2.224 - 2.2") 22n-3 224 2 + 8 -3 2-³ ( 2²h + 2+1 - 2^**) (2^=1+2 2h- 2h+1) h+l -1) -3 x 2 24 n +2²
-2-2-2 (3-2-1-1)

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