Violympic toán 8
Các câu hỏi tương tự
giải pt: \(\frac{1}{x-1}+\frac{3x^2}{1-x^2}=\frac{2x}{x^2+x+1}\)
Giải pt
\(\frac{x^2+x+1}{x+1}+\frac{x^2+2x+2}{x+2}=\frac{x^2+3x+3}{x+3}+\frac{x^2+4x+4}{x+4}\)
giải pt và bất pt
a) |x+5|=3x+1
b)\(\frac{3\left(x-1\right)}{4}+1\ge\frac{x+2}{3}\)
c)\(\frac{x-2}{x+2}-\frac{3}{x-2}=\frac{2\left(x-11\right)}{x^2-4}\)
Giải pt: \(\frac{2x+1}{x^2}+\frac{x^2}{2\left(3x^2+4x+2\right)}=-\frac{1}{2}\)
giải pt
\(\frac{2x-1}{x-1}\) + \(\frac{3x-2}{x-2}\) = \(\frac{x^2+4x+5}{x^2-3x+2}\) + 4
giải pt: a. (x - 2)(x+1)(x+3) = (x+3)(x+1)(2x-5)
b. \(5+\frac{96}{x^2-16}=\frac{2x-1}{x+4}+\frac{3x-1}{x-4}\)
giải các pt sau:
a. x4 - 3x3 + 3x2 -x = 80
b. (x2 + x + 1) (x2 + x + 2) = 12
c. \(\frac{2+29}{31}-\frac{x+27}{33}=\frac{x+17}{43}-\frac{x-15}{45}\)
Giair pt:
c, x ( 3x-1) (3x+1) (3x+2) =8
d, (x+1) (2x+3) (2x+5) (x+3)=45
e,x4+ 3x3 - 15x2 - 19x + 3 = 0
f, \(\frac{1}{x^2+x}+\frac{1}{x^2+3x+2}+\frac{1}{x^2+5x+6}+\frac{1}{x^2+7x+12}=\frac{1}{3}\)
h,\(\frac{1}{x^2+9x+20}+\frac{1}{x^2+11x+30}+\frac{1}{x^2+13x+42}=\frac{1}{18}\)
Giải pt
\(\frac{x+3}{x-3}-\frac{1}{x}=\frac{5x-3}{3x-x^2}\)