Respuesta :

Hello from MrBillDoesMath!

Answer:

12 m n^2

Discussion:

3m * 4 * n * n  =                       => 3* 4 = 12

12 m * n * n                              => as n*n = n^2

12 m n^2

Thank you,

MrB

wegnerkolmp2741o

Answer:

12 m n^2

Step-by-step explanation:

3m⋅4⋅n⋅n

Rearranging

3*4*m*n*n

Combine like terms

12 m n^2

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