Solve
- $$( 2 x - 4 ) ^ { 2 } - 4 ( 2 x - 4 ) - 21 = 0$$

question 236

Multiple Choice

Solve.
- $$( 2 x - 4 ) ^ { 2 } - 4 ( 2 x - 4 ) - 21 = 0$$

• A) \(\left\{ \frac { 1 } { 2 } , \frac { 11 } { 2 } \right\}\)
• B) \(\left\{ \frac { 7 } { 2 } , - \frac { 3 } { 2 } \right\}\)
• C) \(\left\{ - \frac { 1 } { 2 } , - \frac { 11 } { 2 } \right\}\)
• D) \(\left\{ - \frac { 7 } { 4 } , \frac { 3 } { 2 } \right\}\)

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