Question

3x squared + 4y squared if x=2, y=1, and z=-3

Answer 1

The given expression is

`3x^2+4y^2`

Let's replace the values x = 2, and y = 1.

`3(2)^2+4(1)^2=3\cdot4+4\cdot1=12+4=16`

Hence, the answer is 16.