\(\Leftrightarrow\left(3-x\right)^2-3\left(3-x\right)=0\)
\(\Leftrightarrow\left(3-x\right).-x=0\)
\(\Leftrightarrow\left[{}\begin{matrix}x=0\\x=3\end{matrix}\right.\)
Tìm x : a) x^3 - 1/4x = 0 b) ( 2x - 1 )^2 - ( x + 3 )^2=0 c) x^2(x-3)+12-4x=0
a.4x^3-4x^2+x=0
b.x.(x-3)+12-4x=0
c.x^3+3x^2+3x-7=0
*tìm x*
Tìm x
x^2 - 4x - 12 = 0
4x^2 + 4x - 24 = 0
8x^3 - 12x^2 + 6x - 1 = 0
Tìm x
x^3 - 3x^2 - 4x + 12 = 0
x^4 + x^3 - 4x -4 = 0
x2 + 4x - 12 = 0
4x2 + 4x - 3 = 0
b) (2x−1)2−(x+3)2=0;
c) x2(x−3)+12−4x=0
.
x^2(x-3)+12-4x=0
Bài 2: Tìm x:
a)x3 - 1/4x = 0
b) (2x-1)2 - (x+3)2= 0
c) x2 (x-3)+12-4x=0
