Answer: - 4
Step-by-step explanation:
Since x is already given, which is -1, just substitute the value.
7 * -1 * -1 * -1 + 5 * -1 * -1 - 2
7 * -1 + 5 * 1 - 2
-7 + 5 - 2
-2 - 2 = - 4
