Question

cum se calculeaza e(X) sau f(X)?? datimi cateva exemple urgent!!!!!!!!!!!!!!!!!!!

Answer 1

a)E(x)=x²+2x+1=(x+1)²

b)E(x)=3x+4x²+2

E(x)=3•2+4•2²+2

E(x)=6+16+2

E(x)=24. , unde x=2

a)F(x)=x²-4=(x-2)(x+2)

F(x)=9x+6

F(x)=9•5+6

F(x)=45+6

F(x)=51, unde x=5

E(x) sau F(x) sunt acelasi lucru.