14:CDBDD,DDB
1/4,1/2
-3X+4
-8
104
2.5 ,0.5
2
3Y
6a+3
-8ab+5b^2
x^2-2x^2y^2+y^4
(x-m)^2(x-n)(x-m-1)
-b(y-x)(3b-2a)^2
-28
10
-16
1/2
原式=10(n^2-1),所以原式一定是10的倍数
(2x-y+a)(2x-y-a)
(1+m-n)(1-m+n)
S=n^2
100
144
n=15
14:CDBDD,DDB
1/4,1/2
-3X+4
-8
104
2.5 ,0.5
2
3Y
6a+3
-8ab+5b^2
x^2-2x^2y^2+y^4
(x-m)^2(x-n)(x-m-1)
-b(y-x)(3b-2a)^2
-28
10
-16
1/2
原式=10(n^2-1),所以原式一定是10的倍数
(2x-y+a)(2x-y-a)
(1+m-n)(1-m+n)
S=n^2
100
144
n=15