The answer is 2,187 you keep multiplying the exponets
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The distance around the bulletin board would be 20 feet, because you multiply 6ft 2x and 4ft 2x.
When you evaluate the equation you plug in the numbers or replace the variables with the numbers it’s giving you.
-8(2)(-32) - 2(-8) + 4
-16(-32) - 16 + 4
512 + 20
= 532
Hope this helps!