Bài 2: Phương trình bậc nhất một ẩn và cách giải
Các câu hỏi tương tự
giải phương trình sau:
a. (x-1)3-x(x+1)2=5x(2-x)-11(x+2)
b. (x+1)(x2-x+1)-2x= x(x-1)(x+1)
c. (x-2)3+(3x-1)(3x+1)=(x+1)3
Giải phương trình:
a) (x + 5)(x + 2) = 3(4x - 3) + (x - 5)2
b) 12 - 2(1 - x)2 = 4(x - 2) - (x - 3)(2x - 5)
c) (x - 3)3 - 2(x - 1) = x(x - 2)2 - 5x2
d) x(x + 3)2 - 3x = (x + 2)3 + 1
A) 1/4(x+3)=3-1/2(x+1)-1/3(x+2)
B) 3x-11/11-x/3=3x-5/7-5x-3/9
C) x-3/17(2x-1)=7/34(1-2x)+10x-3
A, x/2x+6 - x/2x+2= 3x+2/(x+1)(x+3)
B, 5/x+7+8/2x+14= 2/3
C, x-1/x-1/x+1= 2x-1/x^2+x
Giải các phương trình:
\(a,\dfrac{3x-5}{x-2}=\dfrac{3x+1}{x-1}-\dfrac{3}{x-2}\)
b, \(\dfrac{1}{x-1}+\dfrac{2}{x+3}=\dfrac{7}{\left(x-1\right)\left(x+3\right)}\)
bài 1
a (4x-1) (x-3)-(x-3) (5x+2)=0
b (x+3)(x-5)+(x+3)(3x-4)=0
c(x+6) (3x -1) + \(x^2-36=0\)
Giải các phương trình
a)3x-22x-3 c)11x+42-2x100-9x-22
b)2x+35x+9 d)2x-(3-5x)4(x+3)
e)dfrac{3x+2}{2}-dfrac{3x+1}{6}dfrac{5}{3}+2x
f)dfrac{x+4}{5}-x+4dfrac{x}{3}-dfrac{x-2}{2}
g)(2x+1)(x-1)0
h)(x+dfrac{2}{3})(x-dfrac{1}{2})0
i)(3x-1)(2x-3)(2x-3)(x+5)0
k)3x-152x(x-5)
m)left|x-2right|3
n)left|x+1right|left|2x+3right|
j)dfrac{7x-3}{x-1}dfrac{2}{3}
đ)dfrac{2left(3-7xright)}{1+x}dfrac{1}{2}
y)dfrac{x+5}{x-5}-dfrac{x-5}{x+5}dfrac{20}{x^2-25}
dfrac{1}{x-1...
Đọc tiếp
Giải các phương trình
a)3x-2=2x-3 c)11x+42-2x=100-9x-22
b)2x+3=5x+9 d)2x-(3-5x)=4(x+3)
e)\(\dfrac{3x+2}{2}-\dfrac{3x+1}{6}=\dfrac{5}{3}+2x\)
f)\(\dfrac{x+4}{5}-x+4=\dfrac{x}{3}-\dfrac{x-2}{2}\)
g)(2x+1)(x-1)=0
h)(x+\(\dfrac{2}{3}\))(x-\(\dfrac{1}{2}\))=0
i)(3x-1)(2x-3)(2x-3)(x+5)=0
k)3x-15=2x(x-5)
m)\(\left|x-2\right|=3\)
n)\(\left|x+1\right|=\left|2x+3\right|\)
j)\(\dfrac{7x-3}{x-1}=\dfrac{2}{3}\)
đ)\(\dfrac{2\left(3-7x\right)}{1+x}=\dfrac{1}{2}\)
y)\(\dfrac{x+5}{x-5}-\dfrac{x-5}{x+5}=\dfrac{20}{x^2-25}\)
\(\dfrac{1}{x-1}+\dfrac{2}{x+1}=\dfrac{x}{x^2-1}\)
1) (3x-2)/3-2=(4x+1)/4
2) (x-3)/4+(2x-1)/3=(2-x)/6
3) 1/2 (x+1)+1/4 (x+3)=3-1/3 (x+2)
4) (x+4)/5-x+4=x/3-(x-2)/2
5) (4-5x)/6=2(-x+1)/2
6) (-(x-3))/2-2=5(x+2)/4
7)2(2x+1)/5-(6+x)/3=(5-4x)/15
8) (7-3x)/2-(5+x)/5=1
9)(x-1)/2+3(x+1)/8=(11-5x)/3
10)(3+5x)/5-3=(9x-3)/4
Giải các phương trình sau:
a) frac{4}{x-1}-frac{5}{x-2}-3
b) frac{x+4}{x^2-3x+2}+frac{x+1}{x^2-4x+3}frac{2x+5}{x^2-4x+3}
c) 3x-frac{1}{x-2}frac{x-1}{2-x}
d) frac{2}{x^2-4}-frac{1}{xleft(x-2right)}+frac{x-4}{xleft(x+2right)}0
e) frac{4x}{x^2+4x+3}-16left(frac{1}{x+3}-frac{1}{2x+2}right)
Đọc tiếp
Giải các phương trình sau:
a) \(\frac{4}{x-1}-\frac{5}{x-2}=-3\)
b) \(\frac{x+4}{x^2-3x+2}+\frac{x+1}{x^2-4x+3}=\frac{2x+5}{x^2-4x+3}\)
c) \(3x-\frac{1}{x-2}=\frac{x-1}{2-x}\)
d) \(\frac{2}{x^2-4}-\frac{1}{x\left(x-2\right)}+\frac{x-4}{x\left(x+2\right)}=0\)
e) \(\frac{4x}{x^2+4x+3}-1=6\left(\frac{1}{x+3}-\frac{1}{2x+2}\right)\)