Các câu hỏi tương tự
tim x biet
\(x-2\sqrt{x}-1=0\)
Tim x biet
\(x^4-2x^3-2x^2+3x+2=0\)
Tim x, biet :
(x+2)(x^2-2x+4)+x(5-x)(x+5)=0
Tim x, biet:
(2x-1)2-(2x+3).(2x-3)=0
tim x biet:
(2x-3)2 - (x+5)2=0
tim x biet:
x+x2-x3-x4=0
2x3+3x2+2x2+3=0
x2-x-12=0
Tim x , biet
(2x-1) ^2 + (x+3)^2 -5(x+7)(x-7) = 0
moi ng lam nhanh giup ! Thanks
tim x biet
a) 9x^2+6x+1=0
b) 25x^2=4
c) 8-125x^3=0
d) (2x+1)-10(2x+1)(x+2)+25(x+2)^2=0
GIÚP MIK VS NHÉ
tim x va y biet rang
a) x2+2y2+2xy-2y +1=0
b) x2+2y2+2xy -2x+2=0