I need help understanding how to do this. I can understand the basic idea, I just don't know how to work with letters very well.

I need help understanding how to do this. I can understand the basic idea, I just don't know how to work with letters very well. class=
I need help understanding how to do this. I can understand the basic idea, I just don't know how to work with letters very well. class=

Answer :

Answer:

(etr)^3 , 70f^6g^2h

Step-by-step explanation:

e^2r^2t^3

e^3r^3t^2

LCM=e^3r^3t^3

(etr)^3

10f^2gh

35f^3g^2

LCM= 70f^3g^2h

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