若(9x²)³ 乘上(1/3)的八次方=4 求X
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![若(9x²)³ 乘上(1/3)的八次方=4 求X](/uploads/image/z/3931015-31-5.jpg?t=%E8%8B%A5%EF%BC%889x%26%23178%3B%EF%BC%89%26%23179%3B+%E4%B9%98%E4%B8%8A%EF%BC%881%2F3%EF%BC%89%E7%9A%84%E5%85%AB%E6%AC%A1%E6%96%B9%3D4+%E6%B1%82X)
若(9x²)³ 乘上(1/3)的八次方=4 求X
若(9x²)³ 乘上(1/3)的八次方=4 求X
若(9x²)³ 乘上(1/3)的八次方=4 求X
(9x²)³ 乘上(1/3)的八次方=4
3^6x^6*3^(-8)=4
x^6/3²=4
x^6=36
x=±6的立方根
({{x -> \(-\((\(-6\))\)\^\(1/3\)\)}, {x -> \((\(-6\))\)\^\(1/3\)}, {x -> \
\(-6\^\(1/3\)\)}, {x ->
6\^\(1/3\)}, {x -> \(-\((\(-1\))\)\^\(2/3\)\)\ 6\^\(1/3\)}, {x -> \((\
\(-1\))\)\^\(2/3\)\ 6\^\(1/3\)}}\)