x^2-2x+1=0
x2-x-x+1=0
x(x-1)-(x-1)=0
(x-1)(x-1)=0
(x-1)2=0
=>x-1=0
x=1
vậy x=1
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x^2-2x+1=0
x2-x-x+1=0
x(x-1)-(x-1)=0
(x-1)(x-1)=0
(x-1)2=0
=>x-1=0
x=1
vậy x=1
1,tim cac so nguyen x,y biet: -2/x=y/3 va x<0<y
2, Tim cac so nguyen x,y biet:x-3/y-2=3/2 va x-y=4
tim cac so tu nhien x,y biet:x+2 chia het cho 2y va y+2 chia het cho 2x
tim cac so nguyen x biet(2x+2)(x-3)=0
Tim x biet:x(2+x^2)(7-x)=0
2x-35=15
3x=17=2
/x-1/=0
tim so nguyen
tim cac so nguyen x biet
a)(x + 3)(x2 + 9)<0
b)(x - 1)(2x2 - 8)=0
Tim so nguyen x,y biet
(x+1)^2+(y-1)^2=0
(x+3)×(y+1)=3
xy-2x=5
tim cac so nguyen x de ( A=x+4/x-2)+(2x+5/x-2) la 1 so nguyen
a) tim so nguyen x sao cho : 4x+5 chia het cho 2x-1
b) tim so nguyen x va y biet : xy+3x-2y -11 = 0
giup mik nha ! ai nhanh nhat mik tick cho !