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Factor completely: 2a2 + a - 28

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HomertheGenius

2 a² + a - 28 = 
= 2 a² + 8 a - 7 a - 28 =
= 2 a ( a + 4 ) - 7 ( a + 4 ) =
= ( a + 4 ) ( 2 a - 7 )

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