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Troi a gio hoi ten moi bao bai ha
Thoi giup to di choc to se bao ten cho
cho da thuc :M(6x^3+5x-7+x^2-8x-10x^3+2)
N(-x^4-6x^2-8+x)
tim C(x) sao cho N(x)-C(x)=M(x)-N(x)
Tim x,y thuoc N*,biet: 1/x+1/y=1/2
tim x,y thuoc N* biet 1+x+x^2+x^3=2^y
Tim x thuoc N biet
( x - 2 ) ^2016 + ( x -3 ) = 1
Tim x thuoc N biet
( x - 2 ) ^2016 + ( x -3 ) = 3
tim x,y thuoc N* sao cho 8x^3+y^3-6xy+1 la SNT
tim x thuoc Q biet
(8x-1)2n+1=52n+1
(3x)2:33=\(\frac{1}{243}\)
tim x, y thuoc N biet:
1! + 2! +3! +....+ x! = y2