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4 votes
Factor: x2 + 2x - 15

1 Answer

4 votes
x² + 2 x - 15 =
= x² + 5 x - 3 x - 15 =
= x ( x + 5 ) - 3 ( x + 5 ) =
= ( x + 5 ) ( x - 3 )
Thank you.
User John T
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