tphil8900
tphil8900
07-11-2016
Mathematics
contestada
r^2 -4r -77 = (r + ?)(r + ?)
Respuesta :
Аноним
Аноним
07-11-2016
R^2 -4r -77 = (r + -11)(r + 7)
or
= (r -11)(r + 7)
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