Solve the Multiplication Equation: Finding the Factor in 2 × ? = -8

Let's remember the law:

$(-x)\times(+x)=-x$

Let's think about which number we need to multiply by 2 to get 8:

$2\times4=8$

Now let's put the numbers together with the appropriate sign as written in the law above, and we'll get:

$+2\times(-4)=-8$