I don’t really understand this?
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You replace the p in the given expression by -2 and the m by 3 and simplify
So its (-2)^ / 4 - 3
= 4/4 - 3
= 1 - 3 (note the division 4/4 is done first according to the order of operations rule)
= -2 answer
All you do is fill out what m and p are equal to, so -2^2/4-3
The answer would be -4