book Maths Puzzle Numerical Ability

Hi! i'm stuck on this problem. Radical and fractional exponents
(3{{{SQRT}}2- 2{{{sqrt}}}3) ^3.

thanks

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book Other Question

x+4 divided into x3+6x2+3x+10 1. A designer, attempting to arrange the characters of his artwork in the form of a square grid with equal number of rows and columns, found that 24 characters were left out.