Question

HELP ME please .. I really need it lol

Answer 1

Answer:

C

Step-by-step explanation:

The absolute value function always returns a positive value

However, the expression inside the bars can be positive or negative

| 3 | = 3 and | - 3 | = 3, hence the solution of

| x | = 3 is x = ± 3

Extending this to

| x² - 4 | = 3, then

| x² - 4 | = 3 and | - (x² - 4) | = 3

x² - 4 = 3 ; - (x² - 4) = 3 → C

Answer 2

Answer:

C

Step-by-step explanation:

$|x^2-4|=3$

Before we say what this implies, we need to know that |-1|=1 and |1|=1.

So what I'm saying is:

$|-(x^2-4)|=|-1 \cdot (x^2-4)|=|-1| \cdot |x^2-4|$

$=|x^2-4|$.

So $|x^2-4|=3$ implies:

$(x^2-4)=3$ or $-(x^2-4)=3$.