cube root of 27 = 3, so 3^12 = 531 441
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If the question is about 27x, rather than 27, the answer is as follows:
cuberoot(27x12) = (27x)12/3 = (27x)4 = 531441x4
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27X^3-8 = 0 27X^3 = 8 X^3 = 8/27 X = cubic root of 8/cubic root of 27 = 2/3
19
sqrt(27x)9 = (27x)9/2 = 27x4.5 While that can be simplified somewhat, it will leave a surd - sqrt(3x) - in the answer. Whether or not simplification is worthwhile, therefore, depends on what is to be done with the answer. > sq. root ( 279) ? on calculator: 27, x^y, 9, =, inv, x^2 > 2761448.4397
It is: 23-27x when simplified
X = 1/3