Tìm x biết :
(2x+4) . (x-3) > 0
x+5/x-1 < 0
(x-2) . (x+5) <0
Tìm x, biết :
a) ( x - 3 / 2) < 0
b) ( x- 1 / x+ 1) = 0
c) ( x + 3 / x ) > 0
Tìm x, sao cho:
a) 1 - 2*x < 7
b) (x - 1)*(x - 2) > 0
c) ( x - 2)^2*(x + 1)*(x - 4) < 0
d) x^2*(x - 3) / x - 9 < 0
e) 5/x < 1
Tìm x biết:
a) x^2 > 0
b) x^2 < = 0
c) |x| = -|x+1|
d) |x| = -x^2
tìm x biết
a. 13x(x-3/7)=0
b. 5x^2-1/3x=0
e. /x.(x+3)/=x
Tìm x,y biết: (1/3-2x)120+(3y+x)104=0
Tim x,biet;
a/ \(\left(x-1\right)^2=0\)
b/ \(\left(x-2\right)^2-1=0\)
c/\(\left(2x-1\right)^3=-8\)
d/ \(\left(x+2\right)^2+1=0\)
tìm x sao cho (x-3).(x+4)>0
\(\frac{x+y}{11}\) = \(\frac{x-y}{3}\) = \(\frac{xy}{36}\) ( x≠0 , y≠0 )
Bài 1:Tìm xeQ:
a)(-3).(x+2) <0
b)(x-1).(x+\(\dfrac{1}{3}\)) >0