Answer:If m=3 and n=4, then 4mn-2m^2n is equal to:
4(3)(4) - 2(3)^2(4) = 48 - 72 = -24. easy 6th grade math
Therefore, 4mn-2m^2n is equal to -24 when m=3 and n=4
Step-by-step explanation: and yes i dont have a gf ps im a so called nerd
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