a) 5-4x=3x-9
b) (x-4)(3x+9)=0
c) (x/(x+4))+(12/(x-4))=(4x+48)/(x*x-16)
d) 4-2x=7-x
e) (x+4)(8-4x)=0
f) (x/(x+5))+(11/(x-5))=(x+55)/(x*x-25)
g) ((3x+2)/2) - ((3x+1)/6)= (5/3) +2x
h) 2x-(3-5x)=4(x+3)
i) 3x -6+x=9-x
k) 2t-3+5t= 4t+12
m.n giúp mik ạ ...
Giải các PT sau:
a,4x-3/x-5=29/3
b,2x-1/5-3x=2
c,4x-5/x-1=2+x/x-1
d,7/x+2=3/x-5
e,2x+5/2x-x/x+5=0
f,12x+1/11x-4+10x-4/9=20x+17/18
giải các bất pt sau:
a, 4x-10<0
b, 2x+x+12\(\ge0\)
c, x-5\(\ge3-x\)
d, 7-3x>9-x
đ, 2x-(3-5x)\(\le4\left(x+3\right)\)
e, 3x-6+x<9-x
f, 2t-3+5t\(\ge\)4t+12
g, 3y-2\(\le2y-3\)
h,3-4x+24+6x\(\ge x+27+3x\)
i, 5-(6-x)\(\le4\left(3-2x\right)\)
k, 5(2x-3)- 4(5x-7)\(\ge19-2\left(x+11\right)\)
l, \(\dfrac{2x-5}{3}-\dfrac{3x-1}{2}< \dfrac{3-x}{5}-\dfrac{2x-1}{4}\)
m, \(5x-\dfrac{3-2x}{2}>\dfrac{7x-5}{2}+x\)
n, \(\dfrac{7x-2}{3}-2x< 5-\dfrac{x-2}{4}\)
Giải các PT sau:
a,(5x-4)(4x+6)=0 b,(3,5x-7)(2,1x-6,3)=0
c,(4x-10)(24+5x)=0 d,(x-3)(2x+1)=0
e,(5x-10)(8-2x)=0 f,(9-3x)(15+3x)=0
a/4x-3/x-5=29/3
b/2x-1/5-3x=2
c/4x-5/x-1=2+ x/x-1
d/7/x+2=3/x-5
e/2x+5/2x-x/x+5=0
ai giúp mik với mik nhiều bt lắm
a, 1/x-1 - 7/x+2 = 3/x2+x-2
b,x+3/x-4 + x-1/x-2 = 2/6x-8-x2
c,1/x+1 + 2/x3-x2x+1 = 3/1-x2
d, 3x-1/x-1 - 2x+5/x+3 = 1 - 4/x2+2x-3
e, x2+2x+1/x2+2x+2 + x2+2x+2/x2+2x+3 = 7/6
f, 1/4x2-12x+9 - 3/9-4x2=4/4x2+12x+9
\(a,\dfrac{1}{x^2+3x+2}-\dfrac{3}{x^2-x-2}=\dfrac{-1}{x^2-4}\)
\(b,\dfrac{2x-1}{x^2+4x-5}+\dfrac{x-2}{x^2-10x+9}=\dfrac{3x-12}{x^2-4x-45}\)
Bài 1 : Giải phương trình bằng cách đưa về phương trình tích
a) (2x+1) (3x-2) = (5x-8) (2x+1)
b) (4x^2-1) = (2x+1) (3x-5)
c) (x+1)^2 = 4 . (x^2-2x+1)
d) 2x^3 + 5x^2 - 3x = 0
Bài 2 : Giải phương trình :
a) 1/2x-3 - 3/x.(2x-3) = 5/x
b) x+2/x-2 - 1/x = 2/x.(x-2)
c) x+1/x-2 + x-1/x+2 = 2(x^2+2)/x^2-4
Bài 3 : Giải phương trình :
x^4 + x^3 + 3x^2 + 2x + 2 = 0
Help mee
Giải phương trình:
b)4x/x2+4x+3 - 1=6(1/x+3 - 1/2x+2)
c)x2-x-12=0
e)6x+22/x+2 - 2x+7/x+3=x+4/x^2+5x+6