Question

[Pham Trong Bach]

Phân tích đa thức thành nhân tử:

a) ${\mathrm{x}}^2$ - 10x + 9;                         b) 2 ${\mathrm{x}}^2$ - 5x + 2;

c) 3 ${\mathrm{x}}^2$ - 10xy + 3 ${\mathrm{y}}^2$;                  d) 2xy -  ${\mathrm{x}}^2$ + 3 ${\mathrm{y}}^2$ - 4y + 1;

g) 4x¹⁶ + 81;                             e) 8 ${\mathrm{x}}^2$ - 12xy + 4 ${\mathrm{y}}^2$ - 2x - 1;

h) 625 ${\mathrm{t}}^9$ + 75 ${\mathrm{t}}^3$ + 9;

i) ${(5 - \mathrm{y})}^6$ - 2(125 - 75y + 15 ${\mathrm{y}}^2$ -  ${\mathrm{y}}^3$) +1;

k)  ${\mathrm{x}}^4$ + 2018 ${\mathrm{x}}^2$ + 2017x + 2018.

Answer 1

[Cao Minh Tâm]