Question

Se da E(x)=(x+1)la puterea a 2a+(x-1)la puterea a2a-(x-2)(x+2). Calculati E(1)+E(√2) .
Ajutor !?

Answer 1

[tex]E(x)=(x+1)^2+(x-1)^2-(x-2)(x+2)\\ E(x)=x^2+2x+1+x^2-2x+1-x^2+4\\ E(x)=x^2+6\\ E(1)=7\\ E( \sqrt{2} )=8\\ E(1)+E( \sqrt{2} )=7+8=15[/tex]Scrie răspunsul tău aici