Chào bạn, tham khảo nhé:
Bài 1:
1/ x^2 +4x +4 = (x+2)^2
2/ x^2 - 8x + 16 = (x-4)^2
3/ (x + 5)(x - 5) = x^2 - 25
4/ x^3 + 12x + 48x + 64 = x^3 + 60x + 64
5/ x^3 - 6x + 12x - 8 = x^3 + 6x - 8
6/ (x+2)(x^2 - 2x + 4) = x^3 + 8
7/ (x - 3)(x^2 + 3x + 9) = x^3 - 9
8/ x^2 + 2x +1 = (x+1)^2
9/ x^2 - 1 = (x-1)(x+1)
10/ x^2 - 4x + 4 = (x - 2)^2
11/ x^2 - 4 = (x - 2)(x+2)
12/ x^2 + 6x + 9 = (x + 3)^2
13/ 4x^2 - 9 = (2x - 3)(2x + 3)
14/ 16x^2 - 8x + 1 = (4x - 1)^2
15/ 9x^2 + 6x + 1= (3x+1)^2
16/ 36x^2 + 36x + 9 = (6x+3)^2
17/ x^3 + 27 = (x + 3)(x^2 - 3x + 27)
18/ x^3 - 8 = (x - 2)(x^2 + 2x + 8)
19/ 8x^3 - 1 = (2x - 1)(2x + 1)
CHÚC BẠN HỌC TỐT!
