In a certain chemical, the ratio of zinc to copper is 3 to 14. A jar of the chemical contains 658 grams of copper. How many grams of zinc does it contain?

1

x = 1

step-by-step explanation:

0 ÷ x = 0

0 ÷ 1 = 0

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