Question

a circle has the equation 4x^2-32+4y^2=16 find the center (h,k) and the radius

Answer 1

Write it as
\[
4x^2-32+4y^2=16\\
4x^2+4y^2=48\\
x^2 + y^2=21
\]
You should be able to find the answers now.

Can you?

Answer 2

@eliassaab You might want to check your division

Answer 3

yeah it should be x^2+y^2=3

Answer 4

i mean 12

Answer 5

Oh
\[
x^2 + y^2=12
\]