Question 655920
Then factor the expression. 
14y^2+7y-21
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GCF: 7
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= 7(2y^2 + y - 3)
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= 7(2y^2 + 3y-2y -3)
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= 7(y(2y+3)-(2y+3))
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= 7(2y+3)(y-1)
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Cheers,
Stan H.