\(x^2-3x+2=0\)
\(\Leftrightarrow x^2-x-2x+2=0\)
\(\Leftrightarrow x\left(x-1\right)-2\left(x-1\right)=0\)
\(\Leftrightarrow\left(x-1\right)\left(x-2\right)=0\)
\(\Leftrightarrow\left[{}\begin{matrix}x-1=0\\x-2=0\end{matrix}\right.\)
\(\Leftrightarrow\left[{}\begin{matrix}x=1\\x=2\end{matrix}\right.\)
Tìm x, biết
a) ( x^2 -1/2.x ) :2x + ( 3x - 1 )^2 : ( 1-3x) =0
b) ( x-1)^3 + 1 + 3x( x - 4) = 0
Tìm x
a, (x-2)^2-3x^2+6x=0
b, x^3+27+(x+3)(x-9)=0
tìm x, biết
5x (3x-1) + x(3x-1) - 2 (3x-1) =0
Tìm x, biết.
a/ 3x + 2(5 – x) = 0 b/ x(2x – 1)(x + 5) – (2x2 + 1)(x + 4,5) = 3,5
c/ 3x2 – 3x(x – 2) = 36.
d/ (3x2 – x + 1)(x – 1) + x2(4 – 3x) =
Bài 1: Tính chia:
a) (6x5y2 - 9x4y3 + 15x3y4): 3x3y2 b) (2x3 - 21x2 + 67x - 60): (x - 5) 
c) (6x3 – 7x2 – x + 2) : (2x + 1) d) (x2 – y2 + 6x + 9) : (x + y + 3)
Tìm x biết :
a) \(\left(x-2\right)^3+6\left(x+1\right)^2-x^3+12=0\)
b) \(\left(x-5\right)\left(x+5\right)-\left(x+3\right)^3+3\left(x-2\right)^2=\left(x+1\right)^2-\left(x+4\right)\left(x-4\right)+3x^2\)
c) \(\left(2x+3\right)^2+\left(x-1\right)\left(x+1\right)=5\left(x+2\right)^2-\left(x-5\right)\left(x+1\right)+\left(x+4\right)^2\)
d) \(\left(1-3x\right)^2-\left(x-2\right)\left(9x+1\right)=\left(3x-4\right)\left(3x+4\right)-9\left(x+3\right)^2\)
Tìm x biết
x^2-3x+2+|x-1|=0
Cho x,y khác 0. Tìm GTNN của \(A=\frac{3x^2+2xy}{x^2+2xy+y^2}\)
Tìm x biết:
a, 6x4 + 25x3 + 12x2 - 25x +6 = 0
b, x5 + 2x4 + 3x3 + 3x2 + 2x +1 = 0
c, x2 (x2 + 2) - x2 - 2 = 0
2 . ( x³ -1)-2x²(x+2x⁴) +(4x⁵+4)x=6. 3. (X²-4x+16)(x+4)-x(x+1)(x+2)+3x²= 0 4 . ( 8x +2 ) (1-3x) + ( 6x-1)(4x-10) =-50 Đề bài là tìm x nha mn Nhanh giúp mik vs
Tìm x biết
a, 3x + (x - 4) + 12x - 48 = 0
b, x2 (x - 2) = x - 2
