December 2018 2 81 Report
Bantuin ya, POINT +30

Jika x- \frac{1}{x} = 5, Maka
 x^{2} +  \frac{1}{ x^{2} } adalah=

A. 7
B. 15
C. 23
D. 25
E. 27

bantuin dong, pakai penjelasan ya :)
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