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Find the value of n if (1 / 27^-4 * 9)= 81^n

Guest May 7, 2022

asinus · Answer 1 · 2022-05-07T05:16:38

Find the value of n.

Hello Guest!

$\frac{1}{27^{-4}}\cdot 9=81^n\\ 27^4\cdot9=81^n\\ 3^{3\cdot 4}\cdot 3^2=3^{4n}\\ 3^{3\cdot 4+2}=3^{4n}\\ 3\cdot 4+2=4n\\ 4n=14$

$n=3.5$

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Minachan · Answer 2 · 2022-05-07T08:23:20

Please help me! x2 – 4x ≤ 5 Happy wheels