mstheronn
mstheronn
26-10-2014
Mathematics
contestada
factor the trinomial
y (to the second) -10y+21
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mariamikayla
mariamikayla
26-10-2014
[tex]y^2-10y+21 \to y^2-3y-7y+21= \\\\ = y(y-3)-7(y-3)= \\\\ =\boxed{(y-3)(y-7)}[/tex]
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