SOLUTION: Plz help me sove this question.. I have to simplify it 1-5m[2l-m-{3l-2m-1-2m}]

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Question 919956: Plz help me sove this question.. I have to simplify it
1-5m[2l-m-{3l-2m-1-2m}]
Answer by josgarithmetic(39614) About Me  (Show Source):
You can put this solution on YOUR website!
Distributive Property; and then distributive property again; and then combine like-terms.
1-5m[2l-m-{3l-2m-1-2m}]
1-5m(21-m-31+2m+1+2m)
1-5m(3m-9)
1-15m^2+45m
-15m^2+45m+1, a better general form