Answer:
The value of the expression, when x = -2, is -3
Step-by-step explanation:
To solve this, we need to plug the -2 into the expression and use the order of operations.
2*(-2)²+3(-2)-5
According to the order of operations, we must start with anything in parenthesis.
2*(-2)²+(-6)-5
Now, we do the exponents.
2*4+(-6)-5
Now, we do multiplication.
8+(-6)-5
Now we do addition and subtraction, starting with whichever is first.
2-5
Remember that subtracting a positive is the same as adding a negative.
-3
Our answer is -3
