Unknown number 7

Calculate unknown number whose 12th power when divided by the 9th power get a number 27 times greater than the unknown number. Determine the unknown number.

Correct answer:

x1 =  5.1962
x2 =  -5.1962

Step-by-step explanation:

x12/x9=27x x3=27x x2=27 x1=27=3 3=5.1962
x2=27=3 3=5.1962

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