Đào Ngọc Linh
Giới thiệu về bản thân
a)x^2 + 2xy + y^2 - x - y
(x^2 + 2xy + y^2) - (x + y)
(x+y)^2 - (x+y)
(x+y)(x+y-1)
b)
2x^3 + 6x^2 + 12x + 8
2(x^3 + 3x^2 + 6x + 4)
2[(x^3+3x^2)+(6x+4)]
=2[x^2(x+3)+2(x+3)]
=2(x+3)(x^2+2)
a)x^2 + 2xy + y^2 - x - y
(x^2 + 2xy + y^2) - (x + y)
(x+y)^2 - (x+y)
(x+y)(x+y-1)
b)
2x^3 + 6x^2 + 12x + 8
2(x^3 + 3x^2 + 6x + 4)
2[(x^3+3x^2)+(6x+4)]
=2[x^2(x+3)+2(x+3)]
=2(x+3)(x^2+2)
a)x^2 + 2xy + y^2 - x - y
(x^2 + 2xy + y^2) - (x + y)
(x+y)^2 - (x+y)
(x+y)(x+y-1)
b)
2x^3 + 6x^2 + 12x + 8
2(x^3 + 3x^2 + 6x + 4)
2[(x^3+3x^2)+(6x+4)]
=2[x^2(x+3)+2(x+3)]
=2(x+3)(x^2+2)
a)x^2 + 2xy + y^2 - x - y
(x^2 + 2xy + y^2) - (x + y)
(x+y)^2 - (x+y)
(x+y)(x+y-1)
b)
2x^3 + 6x^2 + 12x + 8
2(x^3 + 3x^2 + 6x + 4)
2[(x^3+3x^2)+(6x+4)]
=2[x^2(x+3)+2(x+3)]
=2(x+3)(x^2+2)
a)x^2 + 2xy + y^2 - x - y
(x^2 + 2xy + y^2) - (x + y)
(x+y)^2 - (x+y)
(x+y)(x+y-1)
b)
2x^3 + 6x^2 + 12x + 8
2(x^3 + 3x^2 + 6x + 4)
2[(x^3+3x^2)+(6x+4)]
=2[x^2(x+3)+2(x+3)]
=2(x+3)(x^2+2)