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
Thank you,
MrB
Explanation:
3m⋅4⋅n⋅n
Rearranging
3*4*m*n*n
Combine like terms
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