#### Answer

$6^2$;
$(\sqrt5)^2$;
$36$;
$5$;
$31$

#### Work Step by Step

RECALL:
$(a+b)(a-b) =a^2-b^2$
With $a=6$ and $b=\sqrt5$, use the formula above to obtain:
$=6^2-(\sqrt5)^2
\\=36-5
\\=31$
Thus, the missing expressions in the given statement are:
$6^2$;
$(\sqrt5)^2$;
$36$;
$5$;
$31$