Question

Ajutorr vă rog
Pe mâine ​

Answer 1

Explicație pas cu pas:

E(x)=x²+nx-2(n+2)=>

E(x)=x²+nx-2n-4 => E(x)=x²-4+n(x-2)=>E(x)=(x+2)(x-2)+n(x-2) =>E(x)=(x-2)(x+2+n)

n=2014 => E(x)=(x-2)(2016+x)

E(x)=x²-6x+8 => (x-2)(x+2+n)=(x-2)(x-4)=>x+2+n=x-4 =>

n+2=-4=>n= -6