Question

[Phương Trần]

- Bài 12: Thực hiện phép tính

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

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

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

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

11) (x + 4) ^ 2 + (x + 5)(x - 5) - 2x(x + 1)

13) (x - 1) ^ 2 - 2(x + 3)(x - 3) + 4x(x - 4)

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

4) (x + 4)(x - 2) - (x - 3) ^ 2

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

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

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

12) (x - 1) ^ 2 - (x - 4)(x + 4) + (x + 3) ^ 2

14) (y - 3)(y + 3)(y ^ 2 + 9) -(y^ 2 +2)(y