\(\left(x^3-3x^2+3x-1\right)-\left(2x^2+x-2\right)=\left(x^3+6x^2+12x+8\right)-\left(3x^2-6x+3\right)+\left(2x^2+8x+8\right)\)
\(-10x^2-24x-12=0\)
\(5x^2+12x+6=0\)
....
Tìm x : \(\left(x-3\right)^2-\left(2x+1\right)^2-2\left(x-1\right)\left(x+2\right)=3\left(x-3\right)-\left(4x-1\right)\left(x+2\right)\)
Tìm x : \(\left(x-3\right)^2-\left(2x+1\right)^2-2\left(x-1\right)\left(x+2\right)=3\left(x-3\right)-\left(4x-1\right)\left(x+2\right)\)
Tìm x biết
a) \(-x^2.\left(x^2-4\right)=-25.\left(x^2-4\right)\)
b) \(x^2.\left(2\left|x\right|-3\right)=\left|x^2\right|.\left(2\left|x\right|-3\right)\)
c) \(\left(2x-6\right)^2=\left(3x+1\right)^{15}\)
d) \(2\left|x-3\right|-\left|4-x\right|=1\)
Tìm x : \(\frac{\left(x-3\right)^2}{2}-1\frac{1}{3}\left(x+2\right)^2-\frac{5}{4}\left(x-1\right)\left(x+1\right)=1\frac{1}{2}x\left(x-2\right)-x-4\)
rut gon
\(\left(3x-1\right)^2+2\left(9x^2-1\right)+\left(3x+1\right)^2\)
\(\left(x^2-1\right)\left(x+3\right)-\left(x-3\right)\left(x^3+3x+9\right)\)
\(\left(x+4\right)\left(x-4\right)-\left(x-4\right)^2\)
Tìm x: \(\left(x-2\right)^3+2\left(1+2x\right)^2=\left(1+x\right)^3-3\left(x-2\right)^2-\left(x-1\right)\)
Tìm x: \(\left(x-2\right)^3+3\left(2x-3\right)^2=\left(3+x\right)^3-5\left(1+3x\right)^2-\left(x-1\right)\left(3-x\right)\)
Tìm x: \(\frac{\left(x-2\right)^2}{2}-4\frac{1}{3}\left(x+3\right)^2=\frac{1}{4}\left(x-1\right)\left(x-2\right)-2\left(3x-1\right)\left(2+3x\right)\)
Phương trình : \(\dfrac{1}{\left(x-1\right)\left(x-2\right)}+\dfrac{1}{\left(x-2\right)\left(x-3\right)}=\dfrac{1}{\left(x-3\right)\left(x-4\right)}+\dfrac{1}{\left(x-1\right)\left(x-4\right)}\)
