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20 votes
20 votes
Plsss helpppp

Solve for x: 2|2x − 2| + 4 = 20.

Group of answer choices

x = 5, x = −3

x = 5, x = −5

x = 3, x = −3

x = −5, x = 3

User Pichsenmeister
by
2.5k points

1 Answer

22 votes
22 votes

Answer:

,


x = 5 \\ x = - 3

Explanation:


2 |2x - 2| + 4 = 20 \\ 2 |2x - 2| = 20 - 4 \\ 2 |2x - 2| = 16 \\ |2x - 2| = 8 \\ 2x - 2 = 8 \: \: \: \: \: \: \: 2x - 2 = - 8 \\ 2x = 8 + 2 \: \: \: \: \: \: 2x = - 8 + 2 \\ 2x = 10 \: \: \: \: 2x = - 6 \\ x = 5 \: \: \: \: \: \: \: \: x = - 3

User Pabitranjan
by
3.2k points
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