countrygirlbookworm2 countrygirlbookworm2

29-01-2019
Mathematics

contestada

(m+3n) ^2 please help me solve this question, I really need it

Respuesta :

misslux misslux

29-01-2019

Answer:

=m2+6mn+9n2

Step-by-step explanation:

=(m+3n)(m+3n)

=(m)(m)+(m)(3n)+(3n)(m)+(3n)(3n)

=m2+3mn+3mn+9n2

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