C; ( x - 1 )2 + 2 ( 1 - x2 ) = 0
D; \(\dfrac{3x}{2x-4}\) - \(\dfrac{1}{x}\) = \(\dfrac{2}{x^2-2x}\)
a, \(\dfrac{x^2}{5x-x^2}-\dfrac{3}{x}=\dfrac{4-x}{x-5}\)
b, \(\dfrac{x+1}{x-2}+\dfrac{x-1}{x+2}=\dfrac{2\left(x^2+2\right)}{x^2-4^{ }}\)
GIẢI CÁC PHƯƠNG TRÌNH :
a). \(\dfrac{x^2-2x+2}{x^2-x+1}-\dfrac{x^2}{x^2+x+1}=\dfrac{3}{(x^4+x^2+1)x}\)
b).\(\dfrac{x^2+2x}{(x+1)^2+3}-\dfrac{x^2-2x}{(x-1)^2-3}=\dfrac{16}{x^4+4x^2+16}\)
GIÚP MÌNH VS CÁC BẠN!!!
giải pt sau:
a, 15x-3(3x-2)=45-5(2x-5)
b, x2-9+4(x-3)=0
c, \(\dfrac{1}{x-4}\)+\(\dfrac{x+2}{x+4}\)=\(\dfrac{5x-4}{x^2-16}\)
a, \(\dfrac{x+2}{2x-4}-\dfrac{4x}{x^2-4}=0\)
b, \(\dfrac{x}{x-1}-\dfrac{5x-3}{x^2-1}=0\)
\(\dfrac{x+2}{x-2}+\dfrac{1}{2}=\dfrac{-2}{x\left(x-2\right)}\)
4(3x-2)=3x+1
Giair pt sau : \(\dfrac{4}{x+5}\) - \(\dfrac{2}{x+9}=\dfrac{1}{3x-1}+\dfrac{1}{2x+3}\)
Giải các phương trình sau :
Câu a : \(\left(x+2\right)\left(x^2-3x+5\right)=\left(x+2\right)x^2\)
Câu b : \(\dfrac{-7x^2+4}{x^3+1}=\dfrac{5}{x^2-x+1}-\dfrac{1}{x+1}\)
Câu c : \(2x^2-x=3-6x\)
Câu d : \(\dfrac{x-2}{x+2}-\dfrac{3}{x-2}=\dfrac{2\left(x-11\right)}{x^2-4}\)
a)\(x^4+\left(x-1\right)\left(3^{x^2}+2x-2\right)=0\)
b)\(\dfrac{x^2-3x+5}{x^2-4x+5}-\dfrac{x^2-5x+5}{x^2-6x+5}=\dfrac{-1}{4}\)