Answer
$37$
Work Step by Step
Use FOIL method.
$(-6+i)(-6-i)=(-6)\cdot (-6)+(-6)\cdot (-i)-i\cdot 6-i\cdot i$
Simplify.
$=36+6i-6i-i^2$
$=36-i^2$
Use $i^2=-1$.
$=36-(-1)$
Simplify.
$=36+1$
$=37$
Hence, the solution in the standard form is $37$.
