Fine has 3 times more books than ruth. ruth has 17 books. write and solve the
multiplication equation that represents the situation.

17 • 3 = 51 or 17 x 3 = 51

Step-by-step explanation:

When the problem says that Fine has three more books than Ruth, that means that you have to multiply the amount of books that Ruth has by three.

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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