Factor Out the Greatest Common Factor $7 \mathrm {~m} ( 9 - \mathrm { m } ) + 3 \mathrm { n } ( 9 - \mathrm { m } )$

question 376

Multiple Choice

Factor out the greatest common factor. Simplify the factors, if possible.
- $7 \mathrm {~m} ( 9 - \mathrm { m } ) + 3 \mathrm { n } ( 9 - \mathrm { m } )$

• A) \(7 ( \mathrm {~m} + \mathrm { n } ) ( 9 - \mathrm { m } )\)
• B) \(( 7 m + 3 n ) ( 9 - m )\)
• C) \(m ( 7 + 3 n ) ( 9 - m )\)
• D) \(( 7 m - 3 n ) ( 9 - m )\)

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