C
cumeo2000
![](https://blog.hocmai.vn/wp-content/uploads/2017/07/hot.gif)
![](https://blog.hocmai.vn/wp-content/uploads/2017/07/hot.gif)
Bài 1:
a)[TEX](x^2+4x-3)^2-5x(x^2+4x-3)+6x^2[/TEX]
b)[TEX]2(x^2-6x+1)^2+5(x^2-6x+1)(x^2+1)+2(x^2+1)^2[/TEX]
c)[(x+1)(x+2)(x+3)(x+4)-24
Bài 2:
a)[TEX]X^3-x^2-4[/TEX]
b)[TEX]x^3+5x^2+8x+4[/TEX]
c)[TEX]x^3+y^3+z^3-3xyz[/TEX]
d) ab(a-b)+bc(b-c)+ca(c-a)
e) [TEX]a(b^2-c^2)+b(c^2-a^2)+c(a^2-b^2)[/TEX]
a)[TEX](x^2+4x-3)^2-5x(x^2+4x-3)+6x^2[/TEX]
b)[TEX]2(x^2-6x+1)^2+5(x^2-6x+1)(x^2+1)+2(x^2+1)^2[/TEX]
c)[(x+1)(x+2)(x+3)(x+4)-24
Bài 2:
a)[TEX]X^3-x^2-4[/TEX]
b)[TEX]x^3+5x^2+8x+4[/TEX]
c)[TEX]x^3+y^3+z^3-3xyz[/TEX]
d) ab(a-b)+bc(b-c)+ca(c-a)
e) [TEX]a(b^2-c^2)+b(c^2-a^2)+c(a^2-b^2)[/TEX]