Phương trình bậc nhất một ẩn
Các câu hỏi tương tự
\(\dfrac{2x-1}{2x+1}+\dfrac{2x+1}{2x-1}=\dfrac{4}{1-4x^{ }^2}\)
giải pt
1. giải pt :
a) \(\dfrac{1}{x-3}+2=\dfrac{5}{x-1}+x\)
b)\(\dfrac{2}{x^2+4x-21}=\dfrac{3}{x-3}\)
c) \(\dfrac{1}{x^2+2x+3}+4=\dfrac{1}{x^2+1}\)
d) \(\dfrac{2x+1}{2x-1}-\dfrac{2x-1}{2x+1}=\dfrac{8}{4x^2-1}\)
e) \(\dfrac{3x-1}{x-1}-\dfrac{2x+5}{x+3}+\dfrac{4}{x^2+2x-3}=1\)
giải phương trình
a, \(\dfrac{3}{2x-1}+1=\dfrac{2x-1}{2x+1}\)
b,\(\dfrac{3x-1}{x-1}-\dfrac{2x+5}{x+3}+\dfrac{4}{x^2+2x-3}=1\)
c,\(\dfrac{5}{x^2+x-6}-\dfrac{2}{x^2+4x+3}=\dfrac{-3}{2x-1}\)
d, \(\left(x^2-4\right)\left(2x+3\right)=\left(x^2-4\right)\left(x-1\right)\)
e, \(x^3+x^2+x+1=0\)
giải các phương trình ẩn x sau:
a) \(\dfrac{1}{3x}\)+\(\dfrac{1}{2x}\)=\(\dfrac{1}{4}\)
b) \(\dfrac{3}{8x}-\dfrac{1}{2x}=\dfrac{1}{x^2}\)
c)\(\dfrac{1}{2x}+\dfrac{3}{4x}=\dfrac{5}{2x^2}\)
d) \(\dfrac{2a}{x+a}=1\)
\(\dfrac{x^2+2x+2}{^{ }x+1}+\dfrac{x^2+8x+20}{x+4}=\dfrac{x^2+4x+6}{x+2}+\dfrac{x^2+6x+12}{x+3}\)
giải pt
a) x-dfrac{dfrac{x}{2}-dfrac{3+x}{4}}{2}dfrac{2x-dfrac{10-7x}{3}}{3}-left(x-1right)
b) x^2-6x-2+dfrac{14}{x^2-6x+7}0
c) dfrac{8x^2}{3left(1-4x^2right)}dfrac{2x}{6x-3}-dfrac{1+8x}{4+8x}
d) dfrac{13}{left(2x+7right)left(x-3right)}+dfrac{1}{left(2x+7right)}dfrac{6}{x^2-9}
e) left(1-dfrac{2x-1}{x+1}right)^3+6left(1-dfrac{2x-1}{x+1}right)^2dfrac{12left(2x-1right)}{x+1}-20
Đọc tiếp
a) \(x-\dfrac{\dfrac{x}{2}-\dfrac{3+x}{4}}{2}=\dfrac{2x-\dfrac{10-7x}{3}}{3}-\left(x-1\right)\)
b) \(x^2-6x-2+\dfrac{14}{x^2-6x+7}=0\)
c) \(\dfrac{8x^2}{3\left(1-4x^2\right)}=\dfrac{2x}{6x-3}-\dfrac{1+8x}{4+8x}\)
d) \(\dfrac{13}{\left(2x+7\right)\left(x-3\right)}+\dfrac{1}{\left(2x+7\right)}=\dfrac{6}{x^2-9}\)
e) \(\left(1-\dfrac{2x-1}{x+1}\right)^3+6\left(1-\dfrac{2x-1}{x+1}\right)^2=\dfrac{12\left(2x-1\right)}{x+1}-20\)
Giải các phương trình có chứa ẩn ở mẫu sau:
a, dfrac{x-3}{x-2}+dfrac{x+2}{x}2
b, left(x-2right)left(dfrac{2}{3}x-6right)0
d, dfrac{x}{x+1}-dfrac{2x-3}{x-1}dfrac{2x+3}{x^2-1}
f, dfrac{x-1}{x}+dfrac{x-2}{x+1}2
g, dfrac{x}{x-1}+dfrac{x-1}{x}2
h, dfrac{x+3}{x+1}+dfrac{x-2}{x}2
i, dfrac{2}{x+1}-dfrac{3}{x-1}5
j, dfrac{2x+1}{2x-1}-dfrac{2x-1}{2x+1}dfrac{8}{4x^2-1}
k, dfrac{3x-1}{x-1}-dfrac{2x+5}{x-3}1
l, dfrac{2}{x+1}-dfrac{1}{xx-2}dfrac{3x-11}{left(x+1right)left(x-2right)}
m, dfrac{3x-1}{x...
Đọc tiếp
Giải các phương trình có chứa ẩn ở mẫu sau:
a, \(\dfrac{x-3}{x-2}+\dfrac{x+2}{x}=2\)
b, \(\left(x-2\right)\left(\dfrac{2}{3}x-6\right)=0\)
d, \(\dfrac{x}{x+1}-\dfrac{2x-3}{x-1}=\dfrac{2x+3}{x^2-1}\)
f, \(\dfrac{x-1}{x}+\dfrac{x-2}{x+1}=2\)
g, \(\dfrac{x}{x-1}+\dfrac{x-1}{x}=2\)
h, \(\dfrac{x+3}{x+1}+\dfrac{x-2}{x}=2\)
i, \(\dfrac{2}{x+1}-\dfrac{3}{x-1}=5\)
j, \(\dfrac{2x+1}{2x-1}-\dfrac{2x-1}{2x+1}=\dfrac{8}{4x^2-1}\)
k, \(\dfrac{3x-1}{x-1}-\dfrac{2x+5}{x-3}=1\)
l, \(\dfrac{2}{x+1}-\dfrac{1}{xx-2}=\dfrac{3x-11}{\left(x+1\right)\left(x-2\right)}\)
m, \(\dfrac{3x-1}{x-1}-\dfrac{2x+5}{x+3}+\dfrac{4}{x^2+2x-3}=1\)
n, \(\dfrac{x+2}{x-2}-\dfrac{1}{x}=\dfrac{2}{x\left(x-2\right)}\)
o, \(\dfrac{x-2}{x+2}+\dfrac{3}{x-2}=\dfrac{x^2-11}{x^2-4}\)
p, \(\dfrac{x+4}{x+1}+\dfrac{x}{x-1}=\dfrac{2x^2}{x^2-1}\)
z, \(\dfrac{2x}{x-1}+\dfrac{4}{x^2+2x-3}=\dfrac{2x-5}{x+3}\)
q, \(\dfrac{x^2-x}{x+3}-\dfrac{x^2}{x-3}=\dfrac{7x^2-3x}{9-x^2}\)
r, \(\dfrac{1}{x-3}+2=\dfrac{5}{x-1}+x\)
s, \(\dfrac{2}{x^2+4x-21}=\dfrac{3}{x-3}\)
5 tháng 3 2021 lúc 21:27
Giải phương trình :a,\(\dfrac{2x 1}{6}-\dfrac{x-2}{4}=\dfrac{3-2x}{3}-x\)b,\(\dfrac{3\left(2x 1\right)}{4}-5-\dfrac{3x 2}{10}=\dfrac{2\left(3x-1\right)}{5}\)\(c,\dfrac{x 1}{2009} \dfrac{x 3}{2007}=\dfrac{x 5}{2005} \dfrac{x 7}{2003}\)\(d,\dfrac{392-x...
Xem chi tiết
Giải phương trình
a) (x+3)(x+1)(x2+2)0
b) (x2-4)(2x+1)0
c) 4x2+4x+10
d) dfrac{2x}{3}-3left(7-xright)dfrac{4x-11}{8}
e) dfrac{5left(x-3right)}{2}-dfrac{4}{3}dfrac{3left(x-1right)}{4}+6
f) dfrac{2}{3x}-dfrac{1}{2x}dfrac{3}{4x^2}
g) dfrac{2}{x-3}dfrac{1}{x+2}
h)dfrac{3}{x+3}-dfrac{1}{x-2}dfrac{5}{2left(x+3right)}
Đọc tiếp
Giải phương trình
a) (x+3)(x+1)(x2+2)=0
b) (x2-4)(2x+1)=0
c) 4x2+4x+1=0
d) \(\dfrac{2x}{3}-3\left(7-x\right)=\dfrac{4x-11}{8}\)
e) \(\dfrac{5\left(x-3\right)}{2}-\dfrac{4}{3}=\dfrac{3\left(x-1\right)}{4}+6\)
f) \(\dfrac{2}{3x}-\dfrac{1}{2x}=\dfrac{3}{4x^2}\)
g) \(\dfrac{2}{x-3}=\dfrac{1}{x+2}\)
h)\(\dfrac{3}{x+3}-\dfrac{1}{x-2}=\dfrac{5}{2\left(x+3\right)}\)