$a, x^2-3xy+2y^2$
$b, 3x^2-5xy+2y2$
$c,x^3-19xy^2+30y^3$
$d, xy+x+y-x^2+2y^2$
$e, 6x^2-3xy+x+y-1$
$f, x^2y^3+y^3-x^5+9-x^3+9x^2$
$g, x^3-y^3+3y^2-3x-2$
$h, (x^2+y^2)(x+y)+8xy-16(x+y)$
c) $(x-2y)(x-3y)(x+5y)$
d)$(x+y)(1-x+2y)$
a)$ (x-y)(x-2y)$
b)$(x-y)(3x-2y)$
e)$(3x-1)(y-2x-1)$
f)$(x^2+1)(y^3-x^3+9)$
g) $(y-x-1)(y^2+xy-2y+x^2-x-2)$
h)$(x+y-4)(x^2+y^2+4x+4y)$
mình chỉ cho kết quả
a=(x-2y)((x-y)
b=(x-y)(3x-2y)
d=(x+y)(1-x+2y)
e=(3x-1)(2x-y+1)
f=(x^2+1)(y-x^3+9)
h=(x+y-4)(x^2+y^2+4x+4y)
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