En la promoción “La tómbola del descuento” de una tienda de autoservicio los clientes obtienen distintos descuentos por sus comp
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This is a second-order ODE since the highest order derivative is 2 (from 
).
It's not linear because it doesn't take the form
and it's not possible to rewrite it as such.
It's not linear because it doesn't take the form
and it's not possible to rewrite it as such.