Mathematics
Senior High
Solved
青色矢印のところどうやって変形したのかわかりません
x+1 x+2 x+3
+
x
x+1 x+2
x+4
x +3
与式(1+1)+(1+1)-(1+1+3)-(1+1+3)
x+2
1
1
1
1
+
2?
IC
x+1
x+2
x+3
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