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Solve
- (2x4)24(2x4)21=0( 2 x - 4 ) ^ { 2 } - 4 ( 2 x - 4 ) - 21 = 0

Question 236

Multiple Choice

Solve.
- (2x4) 24(2x4) 21=0( 2 x - 4 ) ^ { 2 } - 4 ( 2 x - 4 ) - 21 = 0


A) {12,112}\left\{ \frac { 1 } { 2 } , \frac { 11 } { 2 } \right\}
B) {72,32}\left\{ \frac { 7 } { 2 } , - \frac { 3 } { 2 } \right\}
C) {12,112}\left\{ - \frac { 1 } { 2 } , - \frac { 11 } { 2 } \right\}
D) {74,32}\left\{ - \frac { 7 } { 4 } , \frac { 3 } { 2 } \right\}

Correct Answer:

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