5^2x+5^-2×=34 nilai 5^×+5^-×?
Matematika
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Pertanyaan
5^2x+5^-2×=34 nilai 5^×+5^-×?
1 Jawaban
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1. Jawaban xkuadratz
[tex]5^{2x}+5^{-2x}=34 \\ (5^x+5^{-x})^2-2.5^x.5^{-x}=34 \\ (5^x+5^{-x})^2-2=34 \\ (5^x+5^{-x})^2=36 \\ (5^x+5^{-x}) = 6 [/tex]