Question

Write a quadratic equation in the variable x having the given numbers as solutions. Type the equation in standard for, ax^2 +bx +c=0
the equation is _ =0

Answer 1

You're missing the solutions.

Answer 2

So sorry. 9 is the only solution

Answer 3

x=9 or x=9 (note: if one solution is only present, then it's a double root)

x-9=0 or x-9=0

(x-9)(x-9)=0

x^2-9x-9x+81=0

x^2-18x+81=0