Explicación paso a paso:
a) (12x+5)(12x-5)
b) (2a -b )(4a² +2ab+b²)
c) (a+3)²
d) (x-9)(x-1)
e) (3x+10)(x-1)
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Explicación paso a paso:
a) (12x+5)(12x-5)
b) (2a -b )(4a² +2ab+b²)
c) (a+3)²
d) (x-9)(x-1)
e) (3x+10)(x-1)