Vì x chia hết cho ( x -1 )
=> x - 1 + 1 chia hết cho ( x -1 )
=> 1 chia hết cho x - 1 ( Vì x - 1 chia hết cho x - 1 )
=> x - 1 thuộc {-1;1}
=>x = 2 ( Vì x lớn nhất )
so nguyen x lon nhat thoa man x chia het cho (x-1) la x
so nguyen x lon nhat thoa man x chia ( x -1 ) la x .....
so nguyen x be nhat thoa man ( 2x+3 ) chia het cho ( x-1 )
so nguyen x be nhat thoa man (2x+3) chia het cho (x-1) la
so nguyen n lon nhat thoa man (n+1) chia het cho n , n la
so nguyen x be nhat thoa man (2x +3 ) chia het cho ( x - 1 ) la ....
so nguyen x be nhat thoa man (2x+3) chia het (x+1) la
nhanh len nhe
So nguyen x be nhat thoa man (2x+3)chia het cho(x-2)la
so nguyen x lon nhat thoa man : x : ( x -1 ) la x ...........