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Find the missing factor 8b^2+7b-1=(b+1)()
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Find the missing factor 8b^2+7b-1=(b+1)()

User Mike Drakoulelis
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8b^2+7b-1=8b^2+8b-b-1=8b(b+1)-1(b+1)=(b+1)(8b-1)
User Chris Gunawardena
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