3(m-n)-(2m+n)+(2n-1)+2 dla m= - 2, n=1
m=-2
n=1
3(m-n)-(2m+n)+(2n-1)+2=3m-3n-2m-n+2n-1+2=m-2n+1=-2-2*1+1=-2-2+1=-3
licze na naj ;d
3 ( -2-1) - ( 2* (-2) + 1) + (2*1 -1 ) +2 =
= 3* (-3) - ( -3) + 1 + 2 =
= -9 +3 +3 = -3
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m=-2
n=1
3(m-n)-(2m+n)+(2n-1)+2=3m-3n-2m-n+2n-1+2=m-2n+1=-2-2*1+1=-2-2+1=-3
licze na naj ;d
3 ( -2-1) - ( 2* (-2) + 1) + (2*1 -1 ) +2 =
= 3* (-3) - ( -3) + 1 + 2 =
= -9 +3 +3 = -3