0
Anonymous
(y + 5) (y + 2)
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(x - y + 7)(x + y)
That factors to y(y2 + 7y - 5)
y2+7y=18 y2+7y-18=0 (y+9)(y-2)=0 y=-9 & y=2
This is not factor-able.
(y + 7)(y + 7)