Evaluate the following expression, when x=-2 2x^2+4x-3

A) 3
B) 3
C) -19
D) 9

A) -3

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Step-by-step explanation:

Step 1: Define

2x² + 4x - 3

x = -2

Step 2: Evaluate

Step-by-step explanation:

To find the value of this equation when , we can substitute this value inside the equation and use PEMDAS to successfully find the value.

With the expression of , let's substitute -2 in as x.

Now let's follow PEMDAS to solve this equation.

PEMDAS states that when solving an expression/equation, the order we must follow is

We can now solve for this.

We see that exponents come before multiply and dividing. Therefore:

So the value of our first term is 8.

Our second term will be , and our last term will remain -3.

Adding these values together:

Therefore, the value of this expression when x = -2 is -3.

Hope this helped!

23

step-by-step explanation:

step-by-step explanation:

a and d