Question

Calculati valoarea minima a expresiei x la puterea a 2a +4x+ 10, unde x apartine R

Answer 1

$x^{2} +4x+10$ nu merge facuta in doua paranteze, doar atat merge:

x(x+2) + 2(x+5)

sau 

x(x-1) + 5(x+2)

Answer 2

$x^{2} +4x+10$ nu merge facuta in doua paranteze, doar atat merge:

x(x+2) + 2(x+5)

sau 

x(x-1) + 5(x+2)