Respuestas

2012-08-06T23:50:22+02:00

(2n)²+(2n+2)²=(2n+4)²

4n²+4n²+8n+4=4n²+16n+16

4n²-8n-12=0

n²-2n-3=0

n²+n-3n-3=0

n(n+1)-3(n+1)=0

(n-3)(n+1)=0

n=3 ∨ n=-1

 

2*3=6

2*3+2=8

2*3+4=10