To find the value of the expression [tex]\((-9)(2)(-1)\)[/tex], we will follow the steps of multiplication for three numbers, keeping in mind the rules for multiplying negative and positive numbers.
1. First, multiply the first two numbers:
[tex]\[
(-9) \times 2 = -18
\][/tex]
When you multiply a negative number by a positive number, the result is negative.
2. Next, multiply the result by the third number:
[tex]\[
(-18) \times (-1) = 18
\][/tex]
When you multiply two negative numbers, the result is positive.
Therefore, the value of the expression [tex]\((-9)(2)(-1)\)[/tex] is [tex]\(18\)[/tex].
