Will sombody me with complete the square on the following quadratic

x^2+16x+2=0

what value is added to both sides of the equation.

Joseph haydn pet store offers wide variety of leashes for dogs. the store purchases one popular type of leash from its manufacturer for $4.38 each. joseph haydn pets marks up leashes at a rate of 238% of cost. what is the retail price of the popular leash?

Miss henderson wants to build a fence around a rectangular garden in her backyard in the scale drawing the perimeter of the garden is 14 in of the actual length of a b is 20 ft how many feet of fencing what you need

The equation of a parabola is given. y=18x2+4x+20 what are the coordinates of the focus of the parabola?