Question

Identify all like terms:
hr^2 and h^2r
2x and 3y
5x^3y^6 and 2x^6y^3
wz and zw
21m^3y^4 and -9m^3y^4

Answer 1

I know that 5x^3y^6 and 2x^6y^3
wz and zw
21m^3y^4 and -9m^3y^4
Are like terms, but how about the others?

Answer 2

hr^2 = h*r*r
h^2r = h*h*r

so hope so much that you see sure what is the difference

Answer 3

I don't get it.