d) (x + 1/3 x^2 + 7/2 x^3) :( 5x)
Giải thích
d) x+13x2+72x3:5x
=x:5x+13x2:5x+72x3:5x
=1:5.x:x+13:5.x2:x+72:5.x3:x
=15.x1−1+13.15.x2−1+72.15.x3−1
=15x0+115x1+710x2
=15+115x+710x2.
d) x+13x2+72x3:5x
=x:5x+13x2:5x+72x3:5x
=1:5.x:x+13:5.x2:x+72:5.x3:x
=15.x1−1+13.15.x2−1+72.15.x3−1
=15x0+115x1+710x2
=15+115x+710x2.