What is the value of
2x2 + 3x - 5
when
x = -2
?

O

Step-by-step explanation:

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

260m

Step-by-step explanation:

32 would be=80

20 would be=50

80+80+50+50=260

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