Question

$e(x) = \frac{x { }^{2} -6 }{x}$
Calculeaza E(2) se obtine :
a) - 1
b) 1
c) - 5
d) 5
​

Answer 1

Răspuns:

$\Huge \boxed{\bf E(x)=-1}$

Explicație pas cu pas:

$\mathsf{Daca \: E(x)=\dfrac{x^2-6}{x}, \: \: \: atunci \: E(2)=\dfrac{2^2-6}{2}}$

$\bf E(2)=\dfrac{2^2-6}{2}=\dfrac{4-6}{2}=\dfrac{-2}{2}=-1$