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Lara
Seja nnn um número inteiro positivo e m=n+3m=n+3m=n+3. Então, o valor de m2+n2m^{2}+n^{2}m2+n2 é: a) 2n(n+3)+92 n(n+3)+92n(n+3)+9 b) 2n(m+6)+92 n(m+6)+92n(m+6)+9 c) 2n(n+6)2 n(n+6)2n(n+6) d) 9+n29+n^{2}9+n2 e) 9+2n29+2 n^{2}9+2n2
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