Let
and
. Then


and


The expression under the square root can be rewritten as

Recall that

so that

and assuming
and
, we end up with

so that

as required.
3-83= 80
80 divided by 2 is 40
the answer is 40
Yes you always do.
eg x - 2 = 8
x - 2 + 2 = 8 + 2
x = 10
if we plug x = 10 into the original equation we se that this fits:-
10 - 2 = 8
Answer:
4z-10
Step-by-step explanation:
Hope this helped idek if its an option but so srry if its wrong.