Point $K$ is between points $J$ and $L$. If $J K=x^2-4 x, K L=3 x-2$, and $J L=28$, find $J K$.
Answer (3)
4 64 = 8 2 = 8 = 2 2 .
The quartic root of 64 is found by first taking the square root of 64, which is 8, and then taking the square root of that result, which gives an answer between 2 and 3. Since 3 raised to the fourth power (3²²) is 81, which is closest to 64, the quartic root of 64 is 3. ;
The quartic root of 64 is approximately 2.828, which can be expressed as 2 2 . To find this, we used the exponent technique of raising to the power of 0.25 or calculating through intermediate square roots. The exact quartic root does not yield a whole number, but gives an approximate value instead.
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