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23-09-2015
Mathematics

contestada

m^2 + 8m - 9 = 0
Must be factored completely

Respuesta :

23-09-2015

[tex]m^2+8m-9 \\ m^2 -9m+1m-9 \\ m (m-9)+1 (m-9)\\(m+1)(m-9)[/tex]

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