When we had oil changed in our car the mileage was 23,568. We'll change the oil again after we drive another three thousand miles. What will be the mileage then?

26,568

Step-by-step explanation:

so the original mileage was 23,568  and when you need another oil change is in 3000 miles so you add 3000 to 23,568 to get 26,568

i dont know sorry

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