PART A:The crazy 80s baby has guests over to share his gravy he plants to give each guest 1 cup of gravy for every 2 pieces of t
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We can rewrite the expression under the radical as
then taking the fourth root, we get
Why the absolute value? It's for the same reason that
since both and
return the same number
, and
captures both possibilities. From here, we have
The absolute values disappear on all but the term because all of
,
and
are positive, while
could potentially be negative. So we end up with
