Tìm x, biết: –x(x - 3) + (x – 2)2 = 0
Bài 2. Tìm x, biết:
1) –x(x - 3) + (x – 2)2 = 0
2) 2x(x – 5) –x + 5 = 0
3) (2x – 1)(4x2 + 2x +1) – 8x(x – 1)(x + 1)=0
4) 4x(x – 7) = x – 7
10) 6x2 – 11x – 2 = 0
5) x2 – 6x + 9 – 2(3 – x) = 0
6) -3x2 + 11x – 8 = 0
7) - 4x(x + 5) – x – 5 = 0
8) 9(x - 1)2 = (3x - 1)2
9) (x +1)(x + 2)(x + 3)(x + 4) + 1 =0
1) –x(x - 3) + (x – 2)2 = 0
2) 2x(x – 5) –x + 5 = 0
3) (2x – 1)(4x2 + 2x +1) – 8x(x – 1)(x + 1)=0
4) 4x(x – 7) = x – 7
10) 6x2 – 11x – 2 = 0
5) x2 – 6x + 9 – 2(3 – x) = 0
6) -3x2 + 11x – 8 = 0
7) - 4x(x + 5) – x – 5 = 0
8) 9(x - 1)2 = (3x - 1)2
9) (x +1)(x + 2)(x + 3)(x + 4) + 1 =0