2的x方＝6,8的y方＝4,求2的3x-3y-1次方

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2的x方＝6,8的y方＝4,求2的3x-3y-1次方2的x方＝6,8的y方＝4,求2的3x-3y-1次方2的x方＝6,8的y方＝4,求2的3x-3y-1次方2^(3x)-3^(y-1)=((2^x*2

2的x方＝6,8的y方＝4,求2的3x-3y-1次方
2的x方＝6,8的y方＝4,求2的3x-3y-1次方

2的x方＝6,8的y方＝4,求2的3x-3y-1次方
2^(3x)-3^(y-1)
=((2^x*2^x*2^x)/(2^3y))-2^1
=(6*6*6)/8^y/2
=(6*6*6/4)/2
=27

2^(3x)-3^(y-1)
=((2^x*2^x*2^x)/(2^3y))-2^1
=(6*6*6)/8^y/2
=(6*6*6/4)/2
=27

2的3x-3y-1次方
把它分开算``
2的3x-3y-1次方=2^3x÷2^3y÷2^x
=2^x*2^x*2^x÷8^y÷2^x
=6*6*6÷4÷6
=9

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