Baetacat Baetacat

18-02-2015
Mathematics

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how do I factor this trinomial y^2-y-56

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crisforp crisforp

18-02-2015

y^2 - 8y + 7y - 56 = y( y - 8 ) + 7( y - 8 ) = ( y - 8 )( y + 7 ).

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