No te preocupes yo te doy contexto XD
y(y + 4) = -4
[tex]y^2+4y=-4\\y^2+4y+4=-4+4\\y^2+4y+4=0\\y=\frac{-4}{2\cdot \:1}[/tex]<----------------------I Desarrollamos
y=-2 <--------------------I Respuesta
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No te preocupes yo te doy contexto XD
y(y + 4) = -4
[tex]y^2+4y=-4\\y^2+4y+4=-4+4\\y^2+4y+4=0\\y=\frac{-4}{2\cdot \:1}[/tex]<----------------------I Desarrollamos
y=-2 <--------------------I Respuesta