Các câu hỏi tương tự
Giai phương trình sau:
a) \(\frac{2\left(x-4\right)}{3}+\frac{4\left(x-3\right)-x+1}{8}=\frac{3\left(2x-3\right)}{5}-7\)
b)\(x-\frac{10-7x}{6}+1=\frac{x}{2}+\frac{3\left(x-1\right)+2-x}{9}\)
1) giải phương trình: a) left(2x+3right)left(frac{3x+8}{2-7x}+1right)left(x+5right)left(frac{3x+8}{2-7x}+1right)b) frac{7x+10}{x+1}left(x^2-x-2right)-frac{7x+10}{x+1}left(2x^2-3x-5right)0c) frac{2x+5}{x+3}+1frac{4}{x^2+2x-3}-frac{3x-1}{1-x}d) frac{13}{2x^2+x-21}+frac{1}{2x+7}+frac{6}{9-x^2}0e) frac{x-49}{50}+frac{x-50}{49}frac{49}{x-50}+frac{50}{x-49}f) frac{1+frac{x}{x+3}}{1-frac{x}{x+3}}3
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1) giải phương trình:
a) \(\left(2x+3\right)\left(\frac{3x+8}{2-7x}+1\right)=\left(x+5\right)\left(\frac{3x+8}{2-7x}+1\right)\)
b) \(\frac{7x+10}{x+1}\left(x^2-x-2\right)-\frac{7x+10}{x+1}\left(2x^2-3x-5\right)=0\)
c) \(\frac{2x+5}{x+3}+1=\frac{4}{x^2+2x-3}-\frac{3x-1}{1-x}\)
d) \(\frac{13}{2x^2+x-21}+\frac{1}{2x+7}+\frac{6}{9-x^2}=0\)
e) \(\frac{x-49}{50}+\frac{x-50}{49}=\frac{49}{x-50}+\frac{50}{x-49}\)
f) \(\frac{1+\frac{x}{x+3}}{1-\frac{x}{x+3}}=3\)
BT: Giải phương trình
a)\(\frac{5\left(x-1\right)+2}{6}-\frac{7x-1}{4}=\frac{2\left(2x+1\right)}{7}-5\)
b)\(\frac{3x-2}{6}-5=\frac{3-2\left(x+7\right)}{4}\)
a)frac{left(2x-3right)left(2x+3right)}{8}frac{left(x-4right)^2}{6}+frac{left(x-2right)^2}{3}b)frac{7x^2-14x-5}{15}frac{left(2x+1right)^2}{5}-frac{left(x-1right)^2}{3}c)frac{left(7x+1right)left(x-2right)}{10}+frac{2}{5}frac{left(x-2right)^2}{5}+frac{left(x-1right)left(x-3right)}{2} Giải các phương trình sau : ĐS: a) x frac{123}{64} b) xfrac{1}{2} c) frac{19}{15}
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a)\(\frac{\left(2x-3\right)\left(2x+3\right)}{8}=\frac{\left(x-4\right)^2}{6}+\frac{\left(x-2\right)^2}{3}\)
b)\(\frac{7x^2-14x-5}{15}=\frac{\left(2x+1\right)^2}{5}-\frac{\left(x-1\right)^2}{3}\)
c)\(\frac{\left(7x+1\right)\left(x-2\right)}{10}+\frac{2}{5}=\frac{\left(x-2\right)^2}{5}+\frac{\left(x-1\right)\left(x-3\right)}{2}\)
Giải các phương trình sau :
ĐS: a) x= \(\frac{123}{64}\) b) x=\(\frac{1}{2}\) c) \(\frac{19}{15}\)
giải phương trình
a)\(\frac{5\left(x-1\right)+2}{6}-\frac{7x-1}{4}=\frac{2\left(2x+1\right)}{7}-5\)
b)\(\frac{3x-2}{6}-5=\frac{3-2\left(x+7\right)}{4}\)
giúp mk đi
Giải phương trình:1.frac{x-5}{x-5}+frac{x-6}{x-5}+frac{x-7}{x-5}+...+frac{1}{x-5}4left(xin Nright)2.frac{1}{x^2+3x+2}+frac{1}{x^2+5x+6}+frac{1}{x^2+7x+12}+...+frac{1}{x^2+15x+56}frac{1}{14}3.left(1+frac{1}{1.3}right)left(1+frac{1}{2.4}right)left(1+frac{1}{3.5}right)...left(1+frac{1}{xleft(x+2right)}right)frac{31}{16}left(xin Nright)4.8left(x^2+frac{1}{x^2}right)-34left(x+frac{1}{x}right)+5105.6x^4-5x^3-38x^2-5x+60
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Giải phương trình:
1.\(\frac{x-5}{x-5}+\frac{x-6}{x-5}+\frac{x-7}{x-5}+...+\frac{1}{x-5}=4\left(x\in N\right)\)
2.\(\frac{1}{x^2+3x+2}+\frac{1}{x^2+5x+6}+\frac{1}{x^2+7x+12}+...+\frac{1}{x^2+15x+56}=\frac{1}{14}\)
3.\(\left(1+\frac{1}{1.3}\right)\left(1+\frac{1}{2.4}\right)\left(1+\frac{1}{3.5}\right)...\left(1+\frac{1}{x\left(x+2\right)}\right)=\frac{31}{16}\left(x\in N\right)\)
4.\(8\left(x^2+\frac{1}{x^2}\right)-34\left(x+\frac{1}{x}\right)+51=0\)
5.\(6x^4-5x^3-38x^2-5x+6=0\)
Giải các phương trình sau bằng cách đưa về dạng ax + b = 0:
\(a,\frac{\left(2x+1\right)^2}{5}-\frac{\left(x-1\right)^2}{3}=\frac{7x^2-14x-5}{15}\)
\(b,\frac{x+1}{3}+\frac{3\left(2x+1\right)}{4}=\frac{2x+3\left(x+1\right)}{6}+\frac{7+12x}{12}\)
giải phương trình sau: a. frac{6x+1}{x^2-7x+10}
+frac{5}{x-2}frac{3}{x-5}b.frac{2}{x^2-4}-frac{x-1}{xleft(x-2right)}+frac{x-4}{xleft(x+2right)}0c. frac{1}{3-x}-frac{1}{x+1}frac{x}{x-3}-frac{left(x-1right)^2}{x^2-2x-3}d.frac{1}{x-2}-frac{6}{x+3}frac{5}{6-x^2-x}e.frac{2}{x+2}-frac{2x^2+16}{x^3+8}frac{5}{x^2-2x-3}f. frac{x+1}{x^2+x+1}-frac{x-1}{x^2-x+1}frac{2left(x+2right)^2}{x^6-1}
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giải phương trình sau:
a. \(\frac{6x+1}{x^2-7x+10} +\frac{5}{x-2}=\frac{3}{x-5}\)
b.\(\frac{2}{x^2-4}-\frac{x-1}{x\left(x-2\right)}+\frac{x-4}{x\left(x+2\right)}=0\)
c. \(\frac{1}{3-x}-\frac{1}{x+1}=\frac{x}{x-3}-\frac{\left(x-1\right)^2}{x^2-2x-3}\)
d.\(\frac{1}{x-2}-\frac{6}{x+3}=\frac{5}{6-x^2-x}\)
e.\(\frac{2}{x+2}-\frac{2x^2+16}{x^3+8}=\frac{5}{x^2-2x-3}\)
f. \(\frac{x+1}{x^2+x+1}-\frac{x-1}{x^2-x+1}=\frac{2\left(x+2\right)^2}{x^6-1}\)
Giải các phương trình sau:a)frac{left(9x-0.7right)}{4}-frac{left(5x-1.5right)}{7}frac{left(7x-1.1right)}{3}-frac{5left(0.4-2xright)}{6}b)frac{3x-1}{x-1}-frac{2x+5}{x+3}1-frac{4}{left(x-1right)left(x+3right)}c)frac{3}{4left(x-5right)}+frac{15}{50-2x^2}-frac{7}{6left(x+5right)}d)frac{8x^2}{3left(1-4xright)^2}frac{2x}{6x-3}-frac{1+8x}{4+8x}
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Giải các phương trình sau:
a)\(\frac{\left(9x-0.7\right)}{4}-\frac{\left(5x-1.5\right)}{7}=\frac{\left(7x-1.1\right)}{3}-\frac{5\left(0.4-2x\right)}{6}\)
b)\(\frac{3x-1}{x-1}-\frac{2x+5}{x+3}=1-\frac{4}{\left(x-1\right)\left(x+3\right)}\)
c)\(\frac{3}{4\left(x-5\right)}+\frac{15}{50-2x^2}=-\frac{7}{6\left(x+5\right)}\)
d)\(\frac{8x^2}{3\left(1-4x\right)^2}=\frac{2x}{6x-3}-\frac{1+8x}{4+8x}\)