(5x^4-3x^5+3x-1)/(x+1-x^2)
a) (2-4x+3x^4+7x^2-5x^3)/(1+x^2+x)
b) (17x^2-6x^4+5x^3-23x+7)/(7-3x^2-2x)
c) (2x^3-x^2-x+1)/(x^2-2x)
d) (5x^3-x+2)/(x+2x+3)
Loga
Sinh Học lớp 12
