Toan 8 kho

T

thutuanprocute

(x-33)/2010 +(x-34)/2011 +(x-35)/2012 =-3
Suy ra (x-33)/2010+1+(x-34)/2011+1+(x-35)/2012
=0
Suy ra (x+1977)(1/2010+1/2011+1/2012)=0
Do 1/2010+1/2011+1/2012 > 0
Suy ra x+1977=0 suy ra x=-1977
Nho phải cám on do,co bai nao kho cu alo toi thutuanprocute se duoc giai dap nhanh nhat :D:D
 
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