1.

The real values of x that satisfy the equation \(\left( {5 + 2\sqrt 6 } \right)^{\rm x^{2} - 3} + \left( {5 - 2\sqrt 6 } \right)^{\rm x^{2} - 3} = 10\) are given by

A. ± 3
B. ± 2
C. ± 6
D. ± 1
Answer» C. ± 6


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