Toán Lớp 8: Tìm x
1. 4x(x-5) – (x – 1)(4x – 3) = 5
2. (3x – 4)(x – 2)= 3(x – 3)( x + 3)– 3
3. (3x – 2)2 – (3x + 1)(3x – 2) = 7
4. (2x – 1)2 – 4( x-1) (x + 1)= 0
5. 3x(x -1 ) – x+1 = 0
6. 2(x+3) –x2 – 3x=0
7. 8×3 – 50x = 0.
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Toán Lớp 8: Tìm x
1. 4x(x-5) – (x – 1)(4x – 3) = 5
2. (3x – 4)(x – 2)= 3(x – 3)( x + 3)– 3
3. (3x – 2)2 – (3x + 1)(3x – 2) = 7
4. (2x – 1)2 – 4( x-1) (x + 1)= 0
5. 3x(x -1 ) – x+1 = 0
6. 2(x+3) –x2 – 3x=0
7. 8×3 – 50x = 0.
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