When deriving the quadratic formula by completing the square, what expression can be added to both sides of the equation to create a perfect square trinomial?

if you're trying to figure out how much each ounce cost it would be 0.20

cents each ounce

the revenue of the fitness center, y, is the product of two factors: the number of members and the fee paid by each member. there are 320 members now, but number of members goes down by 10 for each $5 increase in fees, so if x is the number of $5 price increases then members is equal to (320 - 10x). since the fee is currently $45, and the fee increases by $5 for every price bump x, the fee is given by (45 + 5x). so, revenue y is given by y = (320 - 10x)(45 + 5x).

the square root of 16 is 4.

4*4 = 16

2*2=3

two times two is four

i dont understand what you mean so pls comment