SOLUTION: Solve by using the quadratic formula. x^2 = 7x – 11 My answer that I got is -7+-SQRT97 Is that correct?

Algebra ->  Quadratic Equations and Parabolas  -> Quadratic Equations Lessons  -> Quadratic Equation Lesson -> SOLUTION: Solve by using the quadratic formula. x^2 = 7x – 11 My answer that I got is -7+-SQRT97 Is that correct?      Log On


   

Question 84353: Solve by using the quadratic formula. x^2 = 7x – 11
My answer that I got is -7+-SQRT97
Is that correct?
Answer by funmath(2933) About Me  (Show Source):
You can put this solution on YOUR website!
Solve by using the quadratic formula. x^2 = 7x – 11
:
First put the equation in ax^2+bx+c=0 form.
x%5E2-7x%2B11=7x-7x-11%2B11
x%5E2-7x%2B11=0
a=1 b=-7 c=11
The quadratic formula is: x=%28-b%2B-sqrt%28b%5E2-4ac%29%29%2F%282a%29
x=%28-%28-7%29%2B-sqrt%28%28-7%29%5E2-4%281%29%2811%29%29%29%2F%282%281%29%29
x=%287%2B-sqrt%2849-44%29%29%2F2
x=%287%2B-sqrt%285%29%29%2F2
Happy Calculating!!!!