-9或11 因为a+b=0 cd+1 2m有可能等于10或-10
0 整数中只有5乘以5 和 1乘以25等于25 abcd又各不相等
所以四个数为-1 1 125 25
i am busy doing my homework now
peter is playing football with his friends
have flied away
keep from falling
-9或11 因为a+b=0 cd+1 2m有可能等于10或-10
0 整数中只有5乘以5 和 1乘以25等于25 abcd又各不相等
所以四个数为-1 1 125 25
i am busy doing my homework now
peter is playing football with his friends
have flied away
keep from falling