Answer :

ok.. so in distributive prop you are to multiply the number out side the parenthesis so 12m times m and then 12m times -3n so it would be (12m² -36mn) Hope it helps! :) 
megangobble13
12m(m-3n)
12m²-36mn
First you take and times 12m by m when you do that you will get 12m². 
Next you take and times 12m by -3n and you will get -36mn

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