AIR MATH

Math Question

Kent multiplies both sides of the equation below by an expression.
\[
k+\frac{12}{k}=8
\]
Then he moves all the terms to one side of the equal sign in the resulting equation. Which equation must he solve now?
\( k^{2}-8 k-12=0 \)
\( k^{2}+8 k+12=0 \)
\( k^{2}-8+12=0 \)
\( k^{2}-8 k+12=0 \)

Solution

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