x^2y^3
-9xy
a+b+c
x^3+x^2-x
6xy^4
3a
9x^2+1
-5b
5x^2-6y^3+1/3 a^2
x^2-5x+6
45.5m^2n+23.22m^3n^2
5yz
a+b
x-y
a^2+6a+9
x^2-4
3.5m^2n
ab^2
-8m^2n^5
a^3+a^2-ab^3
10x^2
x^2+10x+25
x^2+2/5 x+1/25
r-5
Crear
