VERIFICAR: (3x+y)(3x-y)
a. 3x2 - y2
b.x2 + y2
c.9x2 -y2
d.4x2 y2
e.9x2 +y2
a. 3x2 - y2
b.x2 + y2
c.9x2 -y2
d.4x2 y2
e.9x2 +y2
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Respuesta:
4xy + 17xy + 1xy+12xy.
21xy + 13xy
34xy
Explicación paso a paso: