MHB Can You Divide the Functions $P(t)$ and $N(t)$ to Simplify?

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$P(t) = 123(3x+2)^{1/2}$

$N(t) = 13(3x+2)^{1/3}$

can you divide?
 
Seemingly by some mathematical coincidence, a hexagon of sides 2,2,7,7, 11, and 11 can be inscribed in a circle of radius 7. The other day I saw a math problem on line, which they said came from a Polish Olympiad, where you compute the length x of the 3rd side which is the same as the radius, so that the sides of length 2,x, and 11 are inscribed on the arc of a semi-circle. The law of cosines applied twice gives the answer for x of exactly 7, but the arithmetic is so complex that the...