Will the result of the exercise below be positive or negative?
5⋅(−12)= 5\cdot(-\frac{1}{2})= 5⋅(−21)=
Let's remember the rule:
(+x)×(−x)=−x (+x)\times(-x)=-x (+x)×(−x)=−x
Therefore, the sign of the exercise result will be negative:
+5×−12=−212 +5\times-\frac{1}{2}=-2\frac{1}{2} +5×−21=−221
Negative