Các câu hỏi tương tự
tim x biet
\(\sqrt{x-7}=x-1\)
mk dg can gap, ai giai ki gium mk nha
tim x biet \(\sqrt{x-1}\)+1=x
tim gia tri tuyet doi cua x biet: a)x=-1/7 b)x=1/7
tim x biet /x^2+/3x-1//=x^2+7
Tim x biet : ( x - 7 )x+1 - ( x - 7 )x+11 = 0
Tim x biet:
(x-7)x+1 - (x-7)x+11=0
tim x biet 7/x-1=x+1/9
tim x biet
\(x=\sqrt{x}\)
Tim x biet : can bac 2 cua 7 -x =x-1