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Johan Pearson
Mathematics
19 October, 06:21
Factor the expression m^2-3mn-28n^2
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Esperanza Kelley
19 October, 06:42
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(m-7n) (m+4n)
Since a is equal to 1, the equation can be factored by finding factors that multiply to c and adds to b and add each of the factor to m.
find factor that multiplies to - 28n^2 and adds to - 3n
-7n times 4n is - 28n^2 and - 7n plus 4n is - 3n
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