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For which of the following values for b does the function:

$$f(x) = { x }^{ 2 }+bx+4 $$

...intersect the x-axis in two different points?

A

$\text{-4 or 4 only}$

B

$x < -4$

C

$x > 4$

D

$-4 < x < 4$

E

$x < -4 \text{ or } x > 4$

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