Nguyễn Việt Lâm giúp mk vs. thanks bnn!!!!!
giải các phương trình chứa ẩn ở mẫu sau đây dạng \(\frac{p\left(x\right)}{q\left(x\right)}-\frac{r\left(x\right)}{h\left(x\right)}=a\)
a) \(\frac{5x-1}{3x+2}=\frac{5x-7}{3x-1}\)
b) \(\frac{4x+7}{x-1}=\frac{12x+5}{3x+4}\)
c) \(\frac{3\left(x^2-1\right)}{4x+1}+\frac{2}{x}-2x=x^2-1\)
Mn giup e vs ah, thenk kiu :3333
giải các phương trình chứa ẩn ở mẫu sau đây dạng \(\frac{p\left(x\right)}{f\left(x\right)}+\frac{q\left(x\right)}{g\left(x\right)}+\frac{r\left(x\right)}{f\left(x\right).g\left(x\right)}=a\)
a) \(\frac{x+5}{x-1}=\frac{x+1}{x-3}-\frac{8}{x^2-4x+3}\)
b) \(\frac{x+1}{x^2-1}+\frac{2}{x^2+x+1}=\frac{3x^2}{x^3-1}\)
c) \(5+\frac{96}{x^2-16}=\frac{2x-1}{x+4}-\frac{3x-1}{4-x}\)
giải các phương trình chứa ẩn ở mẫu sau đây dạng \(\frac{p\left(x\right)}{q\left(x\right)}-\frac{r\left(x\right)}{q\left(x\right)}=a\)
a) \(\frac{2\left(3-7x\right)}{x+1}=\frac{1}{2}\)
b) \(\frac{1}{\sqrt{x}-2}-1=\frac{3-\sqrt{x}}{\sqrt{x}-2}\)
c) \(\frac{8-x}{x-7}-8=\frac{1}{x-7}\)
d) \(\frac{14}{3x-12}-\frac{x+2}{x-4}=\frac{3}{8-2x}-\frac{5}{6}\)
e) \(\frac{5x-1}{3x+2}=\frac{5x-7}{3x-1}\)
Mn giup e vs ah, thenk kiu :3333
1)2x(25x-4)-(5x-2)(5x+1)=8 / 5)\(2\left(x-2\right)-3\left(3x-1\right)=\left(x-3\right)\)
2)x(4x-3)-(2x-2)(2x-1)=5 / 6)\(\frac{2}{x+1}-\frac{1}{x-2}=\frac{3x-11}{\left(x+1\right)\left(x-2\right)}\)
3)\(\frac{5}{2x+3}+\frac{3}{9-x^2}=\frac{8}{7\left(x=3\right)}\) / 7)\(\frac{5x-2}{6}+\frac{3-4x}{2}=2-\frac{x+7}{3}\)
4)\(\frac{2}{3\left(x-2\right)}+\frac{5}{12-3x^2}=\frac{3}{4\left(x+2\right)}\) / 8)\(\frac{2}{x+1}-\frac{1}{x-2}=\frac{3x-11}{\left(x+1\right)\left(x-2\right)}\)
giải các phương trình chứa ẩn ở mẫu sau đây dạng \(\frac{p\left(x\right)}{f\left(x\right)}+\frac{q\left(x\right)}{g\left(x\right)}+\frac{r\left(x\right)}{f\left(x\right).g\left(x\right)}=a\)
a) \(\frac{x+5}{x-1}=\frac{x+1}{x-3}-\frac{8}{x^2-4x+3}\)
b) \(\frac{x+1}{x^2-1}+\frac{2}{x^2+x+1}=\frac{3x^2}{x^3-1}\)
c) \(5+\frac{96}{x^2-16}=\frac{2x-1}{x+4}-\frac{3x-1}{4-x}\)
Mn giup e vs ah, thenk kiu :3333
giải các phương trình chứa ẩn ở mẫu sau đây dạng \(\frac{p\left(x\right)}{q\left(x\right)}-\frac{r\left(x\right)}{q\left(x\right)}=a\)
a) \(\frac{2\left(3-7x\right)}{x+1}=\frac{1}{2}\)
b) \(\frac{1}{\sqrt{x}-2}-1=\frac{3-\sqrt{x}}{\sqrt{x}-2}\)
c) \(\frac{8-x}{x-7}-8=\frac{1}{x-7}\)
d) \(\frac{14}{3x-12}-\frac{x+2}{x-4}=\frac{3}{8-2x}-\frac{5}{6}\)
giải các phương trình chứa ẩn ở mẫu sau đây dạng \(\frac{p\left(x\right)}{f\left(x\right)}+\frac{q\left(x\right)}{g\left(x\right)}+\frac{r\left(x\right)}{f\left(x\right).g\left(x\right)}=a\)
a) \(\frac{x+5}{x-5}-\frac{x-5}{x+5}=\frac{20}{x^2-25}\)
b) \(\frac{2x}{x+4}-\frac{4x}{x^2-16}=0\)
c) \(\frac{3x+2}{3x-2}-\frac{6}{3x+2}=\frac{9x^2}{9x^2-4}\)
Giải các phương trình sau:
a)\(\left|x^2-3x-5\right|+2\left|2x-1\right|=x^2-4\)
b)\(\frac{4}{2x+1}+\frac{3}{2x+2}=\frac{2}{2x+3}+\frac{1}{2x+4}\)
c)\(\frac{2x-5}{2x^2+3x-5}+\frac{3x+1}{1-x}=\frac{x+20}{4x+10}\)
d)\(\frac{1}{x^2+5x+4}+\frac{1}{x^2+11x+28}+\frac{1}{x^2+17x+70}=\frac{3}{4x-2}\)
hệ phương trình
1, \(\left\{{}\begin{matrix}\frac{1}{x+y}+\frac{1}{x-y}=\frac{5}{8}\\\frac{1}{x+y}-\frac{1}{x-y}=-\frac{3}{8}\end{matrix}\right.\)
2, \(\left\{{}\begin{matrix}\frac{4}{2x-3y}+\frac{5}{3x+y}=2\\\frac{3}{3x+y}-\frac{5}{2x-3y}=21\end{matrix}\right.\)
3, \(\left\{{}\begin{matrix}\frac{7}{x-y+2}+\frac{5}{x+y-1}=\frac{9}{2}\\\frac{3}{x-y+2}+\frac{2}{x+y-1}=4\end{matrix}\right.\)
4, \(\left\{{}\begin{matrix}\frac{3}{x}+\frac{5}{y}=-\frac{3}{2}\\\frac{5}{x}-\frac{2}{y}=\frac{8}{3}\end{matrix}\right.\)
5 , \(\left\{{}\begin{matrix}\frac{2}{x+y-1}-\frac{4}{x-y+1}=-\frac{14}{5}\\\frac{3}{x+y-1}+\frac{2}{x-y+1}=-\frac{13}{5}\end{matrix}\right.\)
6 , \(\left\{{}\frac{\frac{2x-3}{2y-5}=\frac{3x+1}{3y-4}}{2\left(x-3\right)-3\left(y+20=-16\right)}}\)
7\(\left\{{}\begin{matrix}\left(x+3\right)\left(y+5\right)=\left(x+1\right)\left(y+8\right)\\\left(2x-3\right)\left(5y+7\right)=2\left(5x-6\right)\left(y+1\right)\end{matrix}\right.\)
