Question

8x – 3.|-х – 6| –2 при х=-2

Answer 1

Пошаговое объяснение:

тут все просто

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Answer 2

To evaluate the expression $8x - 3|-x - 6| - 2$ when $x = -2$, you first need to substitute the value of $x$ into the expression and then simplify it step by step.

Substituting $x = -2$, the expression becomes:

$8(-2) - 3|-(-2) - 6| - 2$

Now, inside the absolute value signs, since $-(-2)$ equals $2$, the expression becomes:

$8(-2) - 3|2 - 6| - 2$

Next, simplify inside the absolute value signs. $2 - 6$ equals $-4$, but since absolute value always returns non-negative values, $-4$ inside the absolute value signs becomes $4$. So the expression now becomes:

$8(-2) - 3|4| - 2$

Now, evaluate the absolute value of $4$, which is $4$:

$8(-2) - 3(4) - 2$

Multiply and subtract:

$-16 - 12 - 2$

Combine like terms:

$-30$

So, when $x = -2$, the expression $8x - 3|-x - 6| - 2$ equals $-30$.