Which statement does not follow the rules for multiplying integers?
a) if both a and b are positive integers, then a x b = ab.
b) if both a and b are negative integers, then a x b = ab.
c) if both a and b are negative integers, then −a x −b = −ab.
d) if a is a negative integer and b is a positive integer, then −a x b = ab.

If both a and b are negative integers, then −a x −b = −ab.

If both are positive: (+)(+) = + (TRUE)

If both are negative: (−)(−) = + (TRUE)

If a is negative and b is positive: −a is positive and b is positive;

(+)(+) = +. (TRUE)

If a is negative and b is negative:

−a and −b are both positive: (+)(+) = +; therefore the statement "If both a and b are negative integers, then −a x −b = −ab" does NOT follow the rules for multiplying integers.

Step-by-step explanation:

answer: i think it is (1,-2)