Evaluate the integral: ${\displaystyle \underset{\phantom{}}{\overset{\phantom{}}{}}}\frac{28\sqrt[\phantom{2}]{x^2-64}}{x^4}dx$

$($B$)$ Which integral do you obtain after substituting for $x$ and simplifying?

Note: to enter $,$ type the word theta.

J

${\displaystyle \underset{\phantom{}}{\overset{\phantom{}}{}}}d$

$($C$)$ What is the value of the above integral in terms of $?$

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