T
thachkimson


Tìm x:
1)(6X+7)^2(3x+4)(x+1)=6
2)(x-5)/(x-5)+(x-6)/(x+5)+(x-7)/(x-5)+...+1/(x-5)=4( x thuộc N)
1)(6X+7)^2(3x+4)(x+1)=6
2)(x-5)/(x-5)+(x-6)/(x+5)+(x-7)/(x-5)+...+1/(x-5)=4( x thuộc N)
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