Question

ex 5 urgenttt dau coroana ​

Answer 1

Răspuns:

Explicație pas cu pas:

x^2 + 4x + 4 = (x + 2)^2

(x + 2)^2/x(x + 2) = (x + 2)/x

________

1 + 2/x = x/x + 2/x = (x + 2)/x

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E(x) = (x + 2)/x : (x + 2)/x = 1