Răspunsuri

2014-04-07T21:06:56+03:00
E(x)=x²+2x+1+x²-2x+1-x²+4
=x²+6

E(1)=1²+6=1+6=7
E(√2)=(√2)²+6=2+6=8

E(1)+E(√2)=7+8=15
2014-04-07T21:12:32+03:00
E(x)=x²+2x+1+x²-2x+1-x²+4
=x²+6

E(1)=1²+6=1+6=7
E(√2)=(√2)²+6=2+6=8

E(1)+E(√2)=7+8=15 Bafta !
Pai 15 mi-a dat si mie dar la sfarsitul cartii spune ca nu este bun ( ar trebuii sa imi dea 13. Cred ca e gresit :)