Factor Out the Greatest Common Factor $$15 a ( a - b ) + ( a - b )$$

question 136

Multiple Choice

Factor out the greatest common factor.
- $$15 a ( a - b ) + ( a - b )$$

• A) \(16 a ( a - b )\)
• B) \(15 a ( a - b )\)
• C) \(( a - b ) ( 15 a + 1 )\)
• D) \(\left( 15 a ^ { 2 } - 15 a b \right) + ( a - b )\)

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