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13-05-2020
Mathematics

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simplify m(2+n-m)+3(3n+m^2-1)

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Chelboy Chelboy

14-05-2020

Answer:2m^2+mn+2m+9n-3

Step-by-step explanation:

m(2+n-m)+3(3n+m^2-1)

open brackets

2m+mn-m^2+9n+3m^2-3

Collect like terms

3m^2-m^2+mn+2m+9n-3

2m^2+mn+2m+9n-3

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