Question

What is the value of 3x to the second power + 4y to the second power if x=2 and y=-3?​

Answer 1

Answer: 3(2)^2 + 4(3)^2

Explanation:

First do what is replacing the variables by changing X to 2 and Y to -3

3(2)^2 + 4(-3)^2 = 3(4) + 4(9) = 12 + 36 = 48

Answer 2

Answer: The value is 48

Explanation:

Given the following expression:

`3x^2+4y^2`

You need to substitute the values of each variables provided in the exercise into this expression. You can observe that the value of the variable "x" and the value of the variable "y" are:

`x=2 \\ y=-3`

Therefore, substituting values, you get:

`3x^2+4y^2=3(2)^2+4(-3)^2=3(4)+4(9)=12+36=48`