What is the op-op property?

Answer 1

the op-op property stands for the opposite of opposites property. the rule tells you: an odd number of negative numbers multiplied give you a negative answer. an even number of negative numbers multiplied gives you a positive answer. this rule only applies to NEGATIVE numbers. for example:

(-1)x(-1)x1x(-1)x(-1)x(-1)x(-1)x1x(-1)x(-1)x(-1) sounds pretty hard right? WRONG

there are seven negative numbers. seven is an ODD number. so the answer is -1.

if there was eight negative numbers the answer would be 1.

hope this helps