factorise 11m-54mn+63n
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I hope so this is your answer
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11m*2-54mn+ 63n*2=0
11m*2-33mn-21mn +63n*2=0
11m(m-3n) -21n(m-3n)=0
(m-3n)(11m-21n)=0
11m*2-33mn-21mn +63n*2=0
11m(m-3n) -21n(m-3n)=0
(m-3n)(11m-21n)=0
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