Identify ALL sets of LIKE terms

21m^3y^4 and -9m^3y^4
wz and zw
5x^3y^6 and 2x^6y^3
2x and 3y
hr^2 and h^2r

Question

Identify ALL sets of LIKE terms

21m^3y^4 and -9m^3y^4
wz and zw 
5x^3y^6 and 2x^6y^3
2x and 3y 
hr^2 and h^2r

the_fizicx99 · Answer

Group them in parenthesis, it helps when you're combining them.

the_fizicx99 · Answer

Oh wait, hold on

the_fizicx99 · Answer

I'm assuming that this is 21m^3 y^4 and -9m^3 y^4 ?

the_fizicx99 · Answer

If so then, that would be: 
12m^3 y^4 and y^4 is the same as y^4 so no change there.

Wz and zw are different so they don't combine.

7x^3 y^6 and y^3 ( y^6 and y^3 don't combine.)

2x and 3 y also don't combine

hr^2 and h^2r  are also different.

Feel free to correct me if I'm wrong or if I misunderstood. Gl!

anonymous · Answer

apparently thats not the answer but thanks for your help