Question

What is the value of -2x squared + 4y if x =-2 and y = 3

Answer 1

Explanation:

-2x^2 + 4y

x = -2

y=3

just substitute into the equation

-2(4) + 4(4)

-8+16 = 8

Answer 2

The value is:
`4`

Explanation:

You have the following expression:

`-2x^2+4y`

The exercise provides you these values of the variables "x" and "y":

`x =-2\\y = 3`

Then, in order to find the value of
`-2x^2+4y`, you need to substitute the given values of the variables into the expression.

Therefore, its value is:

`-2x^2+4y=-2(-2)^2+4(3)=-2(4)+12=-8+12=4`