c) ( x - 2/5 ) ( x + 3/7 ) = 0 . Tìm x E Q
Bafi1:Tìm x,y\(\in\)Q biết:
a,(2x-5)\(^{4000}\)+(3y+5)\(^{4004}\)\(\le\)0
b,(x+5)\(^4\)+(2y+7)\(^6\)=0
c,|x+3|+2.|3y+4|=0
d,|x+3|-3.|2-4x|=0
Bafi2:Tìm x,y\(\in\)Q biết:
a,|3x-1|+3=1
b,2.|y-5|-\(\frac{5}{3}\)=\(\frac{1}{6}\)
c,|x+5|-3x=-4
d,x+2y=3 và |x|=2
e,(x-3)\(^2\)+|y-5|=0
f,|x+\(\frac{13}{14}\)+|x-\(\frac{3}{7}\)|=0
Bài3:Tìm x,y \(\in\)Q biết:
a,|x-2|+|-3+x|=1
b,|2y+1|+|2y-3|=4
c,|x+1|+|7-x|+|2y+3|=8
d,-|3x+2|+|5+3x|=3
e,|5x-1|+5=2x.
Giúp mk với mn.ai xong trước mk tick cho.
Help me !!
1 tìm x \(\varepsilon\) Q
a, x - 3 < 1/ 2
b, 2x -1 > x- 3
c, -5 / x - 5 < 0
d , x - 3/ 4 < 0
e ( x - 3 ) . ( x + 4 ) > 0
g ( x+1 ).( x +2) <0
Tìm x biêt:
a)5x(x-1\3)=0
b)(x+1\4)(x-2\3)=0
c)1+3x=-5
d)1,5x-\(2\frac{1}{3}\)=1,5-2\3
e)2\3+1\3:x=3\5
y)\(\left(\frac{2x}{3}-3\right):\left(-10\right)=\frac{2}{5}\)
Tìm x biết:
a,(x-3).(x+2)<0
b,(x+1).(x-1)=0
c,(x.5).(x+3)>0
d,\(x^2\)-12x +11>0
e,\(\frac{x-3}{x+1}\)<0
Tìm x:
a)\(\left(4x+\frac{2}{3}\right).\left(\frac{2}{3}x-1\right)=0\)
b)\(\frac{x+2}{x-1}=\frac{5}{2}\)(x E Z;x khác 1)
c)\(\frac{1}{x.\left(x+1\right)}+\frac{1}{\left(x+1\right).\left(x+2\right)}=\frac{2}{15}\)(x E Z; x khác 0;-1;-2)
Giúp mình đi mà mai nộp rồi,hu hu
Tìm x,biết
a)\(|x+\frac{1}{3}|=0\)
b)\(|x+\frac{3}{4}=\frac{1}{2}|\)
c)\(|\frac{5}{18}-x|-\frac{7}{24}=0\)
d)\(\frac{2}{5}-|\frac{1}{2}-x|=6\)
e)\(|\frac{3}{8}-x|+\frac{5}{6}=\frac{7}{4}\)
Tìm x , sao cho :
a)(x-1).(x-2)>0
b)(x-2)2.(x+1).(x-4)<0
c)\(\frac{x^2.\left(x-3\right)}{x-9}\)<0
e)\(\frac{5}{x}\)<1
Bài 1 : Tìm x
a) 2/3 - 1/3 (x-3/2)-1/2(2x+1)=5
b) (x+1/2)(X-3/4)=0
c) 1/3 x + 3/5 (x+1)=0
d)x-8/2 > 0
e) x:(2/9 - 1/5 )=1/2
g) 1/3 + 1/2 : x = 1/5
Nhanh Nha
