Answer
$d=[(x_2-x_1)^2+(y_2-y_1)^2]^{1/2}$
Work Step by Step
Since $\sqrt x=x^{1/2}$, we can rewrite the distance formula as $d=[(x_2-x_1)^2+(y_2-y_1)^2]^{1/2}$
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