Answer:
7
Step-by-step explanation:
3m +8 - 2m^3
lets evaluate m= -1 in the above expression
3(-1) + 8 -2(-1)^3
we know:
+ * - = -
- * - = +
-1^3 = -1*-1*-1 = -1
we have:
-3 +8 - 2(-1)
-3 +8 +2
