Question

Find the following product: $(-1)\times (-2)\times (-3)\times 4$

Answer 1

Compute the product:

The product of odd numbers of negative integers gives a negative integer. Therefore,

$(-1)\times (-2)\times (-3)\times 4=\left(2\right)\times \left(-3\right)\times 4\left[\because (-)\times (-)=+\right]$

$=\left(-6\right)\times 4\left[\because (-)\times (+)=-\right]$

$=-24$

Hence, the product of $(-1)\times (-2)\times (-3)\times 4$ is $-24$.