\(c,\frac{x-a-b}{c}-1+\frac{x-b-c}{a}-1+\frac{x-a-c}{b}-1=0.\)
\(\frac{x-a-b-c}{c}+\frac{x-a-b-c}{a}+\frac{x-a-b-c}{b}=0\)
\(\left(x-a-b-c\right)\left(\frac{1}{a}+\frac{1}{b}+\frac{1}{c}\right)=0\)
=>\(\orbr{\begin{cases}a+b+c=x\\\frac{1}{a}+\frac{1}{b}+\frac{1}{c}=0\end{cases}}\)
Vậy.......
giai các phương trình sau:
a,\(\frac{1-x}{2013}=1+\frac{2-x}{2012}-\frac{x}{2014}\)
b,\(\frac{2-x}{2001}-1=\frac{1-x}{2002}-\frac{x}{2003}\)
c,\(\frac{x-a-b}{c}+\frac{x-b-c}{a}+\frac{x-a-c}{b}=3\)
d,(x+3)4 + (x+5)4=16
e,x4+ 3x3 - 7x2- 27x-18=0
f,\(\frac{2-x}{2001}-1=\frac{1-x}{2002}-\frac{x}{2003}\)
Giải phương trình sau:
a) \(\frac{1-x}{2013}=1+\frac{2-x}{2012}-\frac{x}{2014}\)
b) \(\frac{2-x}{2001}-1=\frac{1-x}{2002}-\frac{x}{2003}\)
Giải các pt sau:
a, (4x-1)(x+5)=(2x-3)^2
b, x(x+1)(x+2)(x+3)=24
c, x^2-2x+1=3x(x-1)
d,\(\frac{x+1}{2017}+\frac{x+2}{2015}=\frac{x+2014}{3}+\frac{x+2013}{4}\)
giải phương trình:
a)\(\frac{x+1}{9}+\frac{x+2}{8}=\frac{x+3}{7}+\frac{x+4}{6}\)
b)\(\frac{x}{2012}+\frac{x+1}{2013}+\frac{x+2}{2014}+\frac{x+3}{2015}+\frac{x+4}{2016}=5\)
giải phương trình sau:
a) \(\frac{15-x}{2000}+\frac{14-x}{2001}=\frac{13-x}{2002}+\frac{12-x}{2003}\)
b) \(\frac{x-5}{2010}+\frac{x-4}{2011}=\frac{x-2010}{5}+\frac{x-2011}{4}\)
c) \(\left(x^2+1\right)^2+3x\left(x^2+1\right)+2x^2=0\)
a/ 2x(x+50-x(2x+7)=0
\(\frac{2x}{3}+\frac{2x-1}{6}=4-\frac{x}{3}\)
c/\(\frac{2-x}{2001}-1=\frac{1-x}{2002}-\frac{2}{2003}\)
Giải pt ẩn x :
\(\frac{a+b-x}{c}+\frac{b+c-x}{a}+\frac{c+a-x}{b}+\frac{4x}{a+b+c}=1\)
\(\frac{x-a}{bc}+\frac{x-b}{ca}+\frac{x-c}{ab}=\frac{2}{a}+\frac{2}{b}+\frac{2}{c}\)
Giúp Salahhhh vớiii <3
1) phân tích đa thức thành nhân tử :
a) (2x-1)^2-(4x-2)-3
b) x(x+1)(x+2)(x+3) -8
2) giải phương trình sau
\(\frac{x}{2000}+\frac{x+1}{2001}+\frac{x+2}{2002}+\frac{x+3}{2003}+\frac{x+4}{2004}=5\)
Giải các phương trình sau:
a)\(\frac{x+1}{2004}+\frac{x+2}{2003}=\frac{x+3}{2002}+\frac{x+4}{2001}\)
b) \(\frac{201-x}{99}+\frac{203-x}{27}=\frac{205-x}{95}+3\)
c) \(\frac{x-45}{55}+\frac{x-47}{53}=\frac{x-55}{45}+\frac{x-53}{47}\)
