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Ex nr 5 multumesc anticipat!

Ex Nr 5 Multumesc Anticipat class=

Răspuns :

E(x) = (x+1)²-4/x : x²-x/x²
E(x) = (x+1-2)(x+1+2)/x * x²/x²-x
E(x) = (x-1)(x+3) * x/x(x-1) 
E(x) = (x+3)*x/x
E(x) = x+3

De aici afli restul .