Đáp án:
Giải thích các bước giải:
a) 18x^2yz : 6xyz
=3x
b) 27x^4y^2z : 9x^4
=3y^2z
c) (5x^4 - 3x^3 + x^2) : 3x^2
= 5/3x^2 - x + 3
d) (5xy^2 +9xy - x^2y^2) : (-xy)
= -5y^2 - 9 + xy
e) (x^3y^3 - 1/2 x^2y^3 - x^3y^2 ) : 1/3 x^2y^2
= 3xy - 3y/2 - 3x
f) (6x^2 + 13x - 5) : (2x + 5)
= 3x + 13/2 - 5/2.x + 6x^2/5 + 13/5.x -1
= 3,1x + 13/2 + 6/5.x^2 -1
g) (2x^4 + x^3 - 5x^2 - 3x - 3) : (x^2 - 3)
= 2x^2 +x - 5 - 3/x - 3/x^2 - 2/3.x^4 - x^3/3 + 5/3 x^2 +x +1
= 11/3.x^2 - 2/3.x^4 - 3/x +2x - 4 - x^3/3
