M1=
30
7
,M3=
30
7
(x 1)3
+127
(3 x)3
+67
(3 x) 67
(4 x)3
57
(4 x)+12
7(5 x)3
+
127
(x 1)3
+127(x 2)3
157(x 2)+1, 11(x 3)2
57,7(x 4)2
+
32(x+1)3
+
32
(1 x)3
+3x∈[2,3]
x∈[3,4]
M1=
30
7
,M3=
30
7
(x 1)3
+127
(3 x)3
+67
(3 x) 67
(4 x)3
57
(4 x)+12
7(5 x)3
+
127
(x 1)3
+127(x 2)3
157(x 2)+1, 11(x 3)2
57,7(x 4)2
+
32(x+1)3
+
32
(1 x)3
+3x∈[2,3]
x∈[3,4]
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