Solved

Solve
- x423x2=50x ^ { 4 } - 23 x ^ { 2 } = 50

Question 20

Multiple Choice

Solve.
- x423x2=50x ^ { 4 } - 23 x ^ { 2 } = 50


A) {5,i2}\{ 5 , \mathrm { i } \sqrt { 2 } \}
B) {25,2}\{ - 25,2 \}
C) [5,5,i2,i2}[ - 5,5 , - \mathrm { i } \sqrt { 2 } , \mathrm { i } \sqrt { 2 } \}
D) {2,2,5i,5i}\{ - \sqrt { 2 } , \sqrt { 2 } , - 5 i , 5 i \}

Correct Answer:

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