Các câu hỏi tương tự
8,Thực hiện phép tínha,frac{5x^2-y^2}{xy}-frac{3x-2y}{y}b,frac{3}{2x+6}-frac{x-6}{2x^2+6x}c,frac{2x}{x^2+2xy}+frac{y}{xy-2y^2}+frac{4}{x^2-4y^2} d,frac{1}{x-y}+frac{3xy}{y^3-x^3}+frac{x-y}{x^2+xy+y^2} e,frac{2x+y}{2x^2-xy}+frac{16x}{y^2-4x^2}+frac{2x-y}{2x^2+xy} f,frac{1}{1-x}+frac{1}{1+x}+frac{2}{1+x^2}+frac{4}{1+x^4}+frac{8}{1+x^8}+frac{16}{1+x^{16}}
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8,Thực hiện phép tính
a,\(\frac{5x^2-y^2}{xy}-\frac{3x-2y}{y}\)
b,\(\frac{3}{2x+6}-\frac{x-6}{2x^2+6x}\)
c,\(\frac{2x}{x^2+2xy}+\frac{y}{xy-2y^2}+\frac{4}{x^2-4y^2}\)
d,\(\frac{1}{x-y}+\frac{3xy}{y^3-x^3}+\frac{x-y}{x^2+xy+y^2}\)
e,\(\frac{2x+y}{2x^2-xy}+\frac{16x}{y^2-4x^2}+\frac{2x-y}{2x^2+xy}\)
f,\(\frac{1}{1-x}+\frac{1}{1+x}+\frac{2}{1+x^2}+\frac{4}{1+x^4}+\frac{8}{1+x^8}+\frac{16}{1+x^{16}}\)
Thực hiện phép tính
1) \(\frac{1-3x}{2x}+\frac{3x-2}{2x-1}+\frac{3x-2}{2x-4x^2}\)
2) \(\frac{x}{x-2y}+\frac{x}{x+2y}+\frac{4xy}{4y^2-x^2}\)
3) \(\frac{xy}{x^2-y^2}-\frac{x^2}{y^2-x^2}\)
Bạn nào bt lm, giúp mình với. Mính tick cho nè. Thanks nhiều lắm.
7,Thực hiện phép tínha,frac{4x+1}{2}-frac{3x+2}{3} b,frac{x+3}{x^2-1}-frac{1}{x^2+x} c,frac{3}{2x^2+2x}+frac{2x-1}{x^2-1}-frac{1}{2}d,frac{3x}{5x+5y}-frac{x}{10x-10y} e,frac{5x^2-y^2}{xy}-frac{3x-2y}{y} f,frac{3}{2x+6}-frac{x-6}{2x^2+6x}
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7,Thực hiện phép tính
a,\(\frac{4x+1}{2}-\frac{3x+2}{3}\)
b,\(\frac{x+3}{x^2-1}-\frac{1}{x^2+x}\)
c,\(\frac{3}{2x^2+2x}+\frac{2x-1}{x^2-1}-\frac{1}{2}\)
d,\(\frac{3x}{5x+5y}-\frac{x}{10x-10y}\)
e,\(\frac{5x^2-y^2}{xy}-\frac{3x-2y}{y}\)
f,\(\frac{3}{2x+6}-\frac{x-6}{2x^2+6x}\)
Thực hiện phép tính :a)frac{x^2}{left(x-yright)^2left(x+yright)}-frac{2xy^2}{x^4-2x^2y^2+y^4}+frac{y^2}{left(x^2-y^2right)left(x+yright)} b)frac{1}{x-1}-frac{1}{x+1}-frac{2}{x^2+1}-frac{4}{x^4+1}-frac{8}{x^{8+1}}-frac{16}{x^{16}+1}c)frac{1}{x^2+6x+9}+frac{1}{6x-x^2-9}+frac{x}{x^2-9}d)frac{a}{x^2+ax}+frac{a}{x^2+3ax+2a^2}+frac{a}{x^2+5ax+6a^2}+....+frac{a}{x^2+19ax+90a^2}+frac{1}{x+10a}
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Thực hiện phép tính :
a)\(\frac{x^2}{\left(x-y\right)^2\left(x+y\right)}-\frac{2xy^2}{x^4-2x^2y^2+y^4}+\frac{y^2}{\left(x^2-y^2\right)\left(x+y\right)}\)
b)\(\frac{1}{x-1}-\frac{1}{x+1}-\frac{2}{x^2+1}-\frac{4}{x^4+1}-\frac{8}{x^{8+1}}-\frac{16}{x^{16}+1}\)
c)\(\frac{1}{x^2+6x+9}+\frac{1}{6x-x^2-9}+\frac{x}{x^2-9}\)
d)\(\frac{a}{x^2+ax}+\frac{a}{x^2+3ax+2a^2}+\frac{a}{x^2+5ax+6a^2}+....+\frac{a}{x^2+19ax+90a^2}+\frac{1}{x+10a}\)
Bleft[left(frac{x}{y}-frac{y}{x}right):left(x-yright)-2left(frac{1}{y}-frac{1}{x}right)right]:frac{x-y}{y}Cleft(frac{x+y}{2x-2y}-frac{x-y}{2x+2y}-frac{2y^2}{y-x}right):frac{2y}{x-y}D3x:left{frac{x^2-y^2}{x^3+y^3}left[left(x-frac{x^2+y^2}{y}right):left(frac{1}{x}-frac{1}{y}right)right]right}Efrac{2}{xleft(x+1right)}+frac{2}{left(x+1right)left(x+2right)}+frac{2}{left(x+2right)left(x+3right)}
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\(B=\left[\left(\frac{x}{y}-\frac{y}{x}\right):\left(x-y\right)-2\left(\frac{1}{y}-\frac{1}{x}\right)\right]:\frac{x-y}{y}\)
\(C=\left(\frac{x+y}{2x-2y}-\frac{x-y}{2x+2y}-\frac{2y^2}{y-x}\right):\frac{2y}{x-y}\)
\(D=3x:\left\{\frac{x^2-y^2}{x^3+y^3}\left[\left(x-\frac{x^2+y^2}{y}\right):\left(\frac{1}{x}-\frac{1}{y}\right)\right]\right\}\)
\(E=\frac{2}{x\left(x+1\right)}+\frac{2}{\left(x+1\right)\left(x+2\right)}+\frac{2}{\left(x+2\right)\left(x+3\right)}\)
2) Giải phương trìnha) frac{x+1}{x-2}+frac{x-1}{x+2}frac{2left(x^2+2right)}{x^2-4}b) left(2x+3right).left(frac{3x+8}{2-7x}+1right)left(x-5right).left(frac{3x+8}{2-7x}+1right)3) Rút gọna) frac{2x-1}{x^3+1}+frac{2x}{x^2-x+1}+frac{-x}{x+1}+2b) frac{x+1}{2x-2}+frac{x^2+3}{2-2x^2}+frac{1}{1-x}-1,5c) left(frac{x^2}{x^3-4x}-frac{6}{3x-6}+frac{1}{x+2}right).frac{x+2}{6}d) left(frac{x}{xy-y^2}+frac{2x-y}{xy-x^2}right):frac{x^2-2xy+y^2}{x^2y-xy^2}e) [frac{1}{left(2x-yright)^2}+frac{2}{4x^2-y^2}-frac{1}{le...
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2) Giải phương trình
a) \(\frac{x+1}{x-2}+\frac{x-1}{x+2}=\frac{2\left(x^2+2\right)}{x^2-4}\)
b) \(\left(2x+3\right).\left(\frac{3x+8}{2-7x}+1\right)=\left(x-5\right).\left(\frac{3x+8}{2-7x}+1\right)\)
3) Rút gọn
a) \(\frac{2x-1}{x^3+1}+\frac{2x}{x^2-x+1}+\frac{-x}{x+1}+2\)
b) \(\frac{x+1}{2x-2}+\frac{x^2+3}{2-2x^2}+\frac{1}{1-x}-1,5\)
c) \(\left(\frac{x^2}{x^3-4x}-\frac{6}{3x-6}+\frac{1}{x+2}\right).\frac{x+2}{6}\)
d) \(\left(\frac{x}{xy-y^2}+\frac{2x-y}{xy-x^2}\right):\frac{x^2-2xy+y^2}{x^2y-xy^2}\)
e) \([\frac{1}{\left(2x-y\right)^2}+\frac{2}{4x^2-y^2}-\frac{1}{\left(2x+y\right)^2}].\frac{x^2+4xy+y^2}{16x}\)
Mn giúp mik vs mik đang cần gấp
1,Thực hiện phép tính
a,\(\frac{3}{2x^2+2x}+\frac{2x-1}{x^2-1}-\frac{2}{x}\)
b,\(\frac{3x}{5x+5y}-\frac{x}{10x-10y}\)
c,\(\frac{5x^2-y^2}{xy}-\frac{3x-2y}{y}\)
d,\(\frac{3}{2x+6}-\frac{x-6}{2x^2+6x}\)
Thực hiện phép tính:
a, (2x-y)(4x2+2xy+y2)
b, (4x3y2-6x2y3+12x3y3):2x2y2
c, \(\frac{3x}{2x-2y}\):\(\frac{x^2}{x-y}\)
d, \(\frac{x}{x-1}\)+\(\frac{2}{1-x}\)+\(\frac{x+1}{x^2-1}\)
Thực hiện phép tinh:a)frac{4}{x+2}+ frac{2}{x-2}+frac{5x-6}{4-x^2}b)frac{1-3x}{2x}+frac{3x-2}{2x-1}+frac{3x-2}{2x-4x^2}c)frac{1}{x^2+6x+9}+frac{1}{6x-x^2-9}+frac{x}{x^2-9}d)frac{x^2+2}{x^3-1}+frac{2}{x^2+x+1}+frac{1}{1-x}e)frac{x}{x-2y}+ frac{x}{x+2y}+frac{4xy}{4y^2-x^2}. Giúp Mk nha
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Thực hiện phép tinh:
a)\(\frac{4}{x+2}\)+ \(\frac{2}{x-2}\)+\(\frac{5x-6}{4-x^2}\)
b)\(\frac{1-3x}{2x}\)+\(\frac{3x-2}{2x-1}\)+\(\frac{3x-2}{2x-4x^2}\)
c)\(\frac{1}{x^2+6x+9}\)+\(\frac{1}{6x-x^2-9}\)+\(\frac{x}{x^2-9}\)
d)\(\frac{x^2+2}{x^3-1}\)+\(\frac{2}{x^2+x+1}\)+\(\frac{1}{1-x}\)
e)\(\frac{x}{x-2y}\)+ \(\frac{x}{x+2y}\)+\(\frac{4xy}{4y^2-x^2}\). Giúp Mk nha