3. It costs $3.99 for 25 fl. oz. of detergent or $6.99 for 90 fl. oz. Identify which bottle has the lower cost per ounce. 4. Which is the better deal for bags of chips? 2 bags for $5 or 3 bags for $9?

Please answer properly and show me or tell me all your work

i need a picure

step-by-step explanation:

let's call the solutions x₁ = (5 - 2√7)/3 and x₂ = (5 + 2√7)/3

then the equation is (x-x₁)(x-x₂) = 0

if you fill that in you get a lot of numbers which you can recognize as ax²+bx+c=0.

step-by-step explanation:

you can see that a=1 (there is just an x²)

b = (-5 -2√7 + 2√7 - 5)/3 = -10/3

c = -2√7)/3 ) * (-5+2√7)/3) = -1/3

so your answer is 3x^2 – 10x – 1 = 0