Giúp mình với ạ!!! ai trả lời nhanh mình tick luôn nhé
a, \(\frac{2x^2-x}{x^2+x+1}+\frac{x^3-2x^2}{x^2+x+1}+\frac{x-1}{x^2+x+1}\)
b, \(\frac{2x+y}{x\left(y^2-x\right)}-\frac{2x-y}{x\left(y^2-x\right)}\)
c, \(\frac{4}{x+2}+\frac{3}{x-2}+\frac{-5-2}{x^2-4}\)
d, \(\frac{1-2x}{2x}+\frac{2x}{2x-1}+\frac{1}{2x-4x^2}\)
e, \(\frac{1}{x-y}+\frac{3xy}{y^3-x^3}+\frac{x-y}{x^2+xy+y^2}\)
f, \(\frac{3}{x^2+2xy+y^2}+\frac{4}{2xy-x^2-y^2}+\frac{5}{x^2-y^2}\)
a)\(\frac{1-3x}{2}\)-\(\frac{x+3}{2}\) b)\(\frac{2\left(x+y\right)\left(x-y\right)}{x}\)-\(\frac{-2y^2}{x}\)
c)\(\frac{3x+1}{x+y}\)-\(\frac{2x-3}{x+y}\)
d)\(\frac{xy}{2x-y}\)-\(\frac{x^2-1}{y-2x}\)
e)\(\frac{4x-1}{3x^2y}\)-\(\frac{7x-1}{3x^2y}\)
giúp em với
tìm điều kiện xác định của phân thức
a) \(\frac{x^2-4}{x^2-1}\) c) \(\frac{x^2-5x+6}{x^2-1}\) e) \(\frac{2x+1}{x^2-5x+6}\)
b) \(\frac{5x-3}{2x^2-x}\) d) \(\frac{2}{\left(x+1\right)\left(x-3\right)}\)
giúp mình với các bạn :((
\(\frac{2x^2+5}{x^2-x+1}-\frac{x^3+4}{x^2-x+1}\)
\(\frac{3x+2}{x^2-2x+1}\)-\(\frac{6}{x^2-1}\)-\(\frac{3x-2}{x^2+2x+1}\)
giúp mk nhanh vs, ai đúng mk tặng 3 tick nha
Trừ phân thức:
a) x^2+y^2/(x-y)^3 - 2xy/(x-y)^3.
b) x^2+25y^2/x^2-25y^2 - 10xy/x^2-25y^2.
c)3x/5x+5y - x/10x-10y.
d) 1/x-3 - 3/2x+6 - x/2x^2-12x+18.
e) (x^2-1) - x^4-3x^2-4/x^2+1.
f) 1/3x-2 - 4/3x+2 - 3x-6/4-9x^2.
g) 4x^2-3x+5/x^3-1 - 1-2x/x^2+x+1 - 6/x-1.
h) 5/x+1 - 10/x-x^2-1 - 15/x^3+1.
i) 2/2x+1 - 1/2x-1 - 2/4x^2-1.
\(\frac{x^2}{x+1}+\frac{2x}{x^2-1}+\frac{1}{1-x}+1\)
Tìm x để A đạt giá trị nguyên biết A=\(\left(\frac{x^4+x^2-4x+1}{x^2-1}-\frac{x-1}{x+1}+\frac{x+1}{x-1}\right).\frac{x^2-1}{x^3-1}\)
\(\frac{x^2-1}{2x^2-4x+2}\)-\(\frac{x+3}{2x+2}\)
giúp cháu zới :<<
Làm tính trừ phân thức :
a) \(\dfrac{3x-2}{2xy}-\dfrac{7x-4}{2xy}\)
b) \(\dfrac{3x+5}{4x^3y}-\dfrac{5-15x}{4x^3y}\)
c) \(\dfrac{4x+7}{2x+2}-\dfrac{3x+6}{2x+2}\)
d) \(\dfrac{9x+5}{2\left(x-1\right)\left(x+3\right)^2}-\dfrac{5x-7}{2\left(x-1\right)\left(x+3\right)^2}\)
e) \(\dfrac{xy}{x^2-y^2}-\dfrac{x^2}{y^2-x^2}\)
f) \(\dfrac{5x+y^2}{x^2y}-\dfrac{5y-x^2}{xy^2}\)
g)\(\dfrac{x}{5x+5}-\dfrac{x}{10x-10}\)
h) \(\dfrac{x+9}{x^2-9}-\dfrac{3}{x^2+3x}\)
