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Solve the inequality: [tex]|4w + 2| - 6 \ \textgreater \ 8[/tex]

A. [tex]w \ \textgreater \ 3[/tex] or [tex]w \ \textless \ -1[/tex]
B. [tex]w \ \textgreater \ 3[/tex]
C. [tex]w \ \textgreater \ 3[/tex] or [tex]w \ \textless \ -4[/tex]
D. [tex]-4 \ \textless \ w \ \textless \ 3[/tex]


Sagot :

To solve the inequality [tex]\( |4w + 2| - 6 > 8 \)[/tex], we need to follow several steps. Let's begin by isolating the absolute value expression.

1. Start with the given inequality:
[tex]\[ |4w + 2| - 6 > 8 \][/tex]

2. Add 6 to both sides to isolate the absolute value:
[tex]\[ |4w + 2| > 14 \][/tex]

Next, we need to isolate the value within the absolute value function. Recall that the inequality [tex]\( |x| > a \)[/tex] means that [tex]\( x > a \)[/tex] or [tex]\( x < -a \)[/tex].

3. Break the absolute value inequality into two separate inequalities:
[tex]\[ 4w + 2 > 14 \quad \text{or} \quad 4w + 2 < -14 \][/tex]

4. Solve each inequality separately:

- For [tex]\(4w + 2 > 14\)[/tex]:
[tex]\[ 4w + 2 > 14 \][/tex]
Subtract 2 from both sides:
[tex]\[ 4w > 12 \][/tex]
Divide by 4:
[tex]\[ w > 3 \][/tex]

- For [tex]\(4w + 2 < -14\)[/tex]:
[tex]\[ 4w + 2 < -14 \][/tex]
Subtract 2 from both sides:
[tex]\[ 4w < -16 \][/tex]
Divide by 4:
[tex]\[ w < -4 \][/tex]

Putting it all together, the solution to the inequality [tex]\( |4w + 2| - 6 > 8 \)[/tex] is:
[tex]\[ w > 3 \quad \text{or} \quad w < -4 \][/tex]

So, the correct answer is:
[tex]\[ w > 3 \quad \text{or} \quad w < -4 \][/tex]