What is the answer to the following exercise?
(−4)⋅(−1)= (-4)\cdot(-1)= (−4)⋅(−1)=
Let's recall the rule:
(−x)×(−x)=+x (-x)\times(-x)=+x (−x)×(−x)=+x
Therefore, the sign of the exercise result will be positive:
−4×−1=+4 -4\times-1=+4 −4×−1=+4
4 4 4