A \times negParens(B) = ?
A negative times a negative is a positive.
A negative times a positive is a negative.
A positive times a negative is a negative.
0
times any number is 0
.
A \times negParens(B) = C
C \div negParens(B) = ?
A negative divided by a negative is a positive.
A negative divided by a positive is a negative.
A positive divided by a negative is a negative.
0
divided by any number is 0
.
C \div negParens(B) = A