Ответ:
12n
Объяснение:
(n+2)(n+3)-(n-1)(n+6)/12=
=n²+3n+2n+6-n²+6n+n+6/12=
=12n+12/12=
=12n
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Ответ:
12n
Объяснение:
(n+2)(n+3)-(n-1)(n+6)/12=
=n²+3n+2n+6-n²+6n+n+6/12=
=12n+12/12=
=12n