To solve the equation below by completing the square, what is your first step?

4x2 + 16x = 20

a- add 8 to each side of the equation.

b -add 64 to each side of the equation.

c- multiply both sides of the equation by 1/4

d- multiply both sides of the equation by 1/8

Sandy is upgrading her internet service. fast internet charges $20 for installation and $52.45 per month. quick internet has free installation but charges $57.45 per month. part 1 out of 2 complete the equation that can be used to find the number of months after which the internet service would cost the same. use the variable x to represent the number of months of internet service purchased.