Homework Help

Solve the quadratic equation : 6x = 9 + x^2

user profile pic

xzaviorss | Student, Grade 10 | eNoter

Posted April 30, 2013 at 3:46 AM via web

dislike 2 like

Solve the quadratic equation : 6x = 9 + x^2

2 Answers | Add Yours

user profile pic

justaguide | College Teacher | (Level 2) Distinguished Educator

Posted April 30, 2013 at 3:56 AM (Answer #1)

dislike 2 like

The quadratic equation 6x = 9 + x^2 has to be solved.

6x = 9 + x^2

=> x^2 - 6x + 9 = 0

The solution of the equation is `(6 +- sqrt(36 - 36))/2 = 3`

The quadratic equation has two equal roots, the solution is 3.

user profile pic

oldnick | Valedictorian

Posted May 1, 2013 at 2:57 AM (Answer #2)

dislike 1 like

`6x=9+x^2`

`x^2-6x+9=0`

`(x-3)^2=0`

`x_1=x_2=3`

Join to answer this question

Join a community of thousands of dedicated teachers and students.

Join eNotes