1) 2x + y)'3 - 2(y - x)'3

2) (2x - 3)'3 - 2x(2x + 1)'2

3) (3x -1)'2 -27x'2(x + 1)

4) (2x + 1)'3 - 8x(x - 1)'2

Tìm x biết

1) (2x - 1)'2 - (4x'2- 1) =0

2) (x + 2)'2 -x(x - 3) =2

3) (x - 5)'2 - x(x + 2) =5

4) (x - 1)'2 + x(4 - x) =11

5) (x - 3)(x + 3) =(x - 5)'2

6) (2x + 1)'2 - 4x(x - 1) =17

7) (3x + 1)'2 - 9x(x - 2) =25

8) (3x - 2)(2x + 2) - 9(x - 1)x =0

9) (x + 2)'2 - (x - 2)(x + 2) =0

10) (x + 2)'2 - (x - 3)(x + 3) =-3

Tìm x biết x

1) (2x - 3)'2 - (x - 1)'2 =0

2) (2x + 1)'2 - (x - 1)'2 =0

3) (3x- 5)'2 - (x + 1)'2 =0

4) (x + 2)'2 - (2x - 5)'2 =0

5) (3x - 1)'2 - (x + 5)'2 =0

6) (2x - 3)'2 - (x + 5)'2 =0

7) (3x - 4)'2 - (x + 2)'2 =0

8) (2x - 1)'2 - (3 - x)'2 =0

Thực hiện phép tính

5) (x - 2)'2 + (x - 1)(x + 5)

6) (x + 3)(x - 3) - x(23 + x)

7) (1 - 2x)(5 - 3x) + (4 - x)'2

8) (x - 2)(x + 2) - (x +3)(x - 1)

9) (x + 1)'2 + (x - 2)(x + 2) - 4x

10) (x + 2)'2 - (x + 3)(x - 3) +10

Thực hiện phép tính

1) x(1 - x) + (x - 1)'2

2) (x - 3)'2 - x'2 + 10x -7

3) (x + 2)'2 - (x - 3)(x + 1)

4) (x + 4)(x + 2) - (X - 3)'2

Rút gọn biểu thức sau

10) (2x + 1)'2 + (-3x - 1)

11) -(x - y)'2 - (2x + y)

12) -(x + 1)'2 + (x - 1)'2

13) (2x + 7)'2 + (-2x - 3)

14) -(2x - y)'2 - (x + 3y)'2

15) -(2x + 7)'2 + (-2x - 3)'2