SOLUTION: Complete the square: x^2+2x+9. Enter your answer in the form a(x+u)^2+v, where a, u, and v are replaced by numbers. I am confused on how to complete the square on this proble

Algebra ->  Quadratic Equations and Parabolas  -> Quadratic Equations Lessons  -> Quadratic Equation Lesson -> SOLUTION: Complete the square: x^2+2x+9. Enter your answer in the form a(x+u)^2+v, where a, u, and v are replaced by numbers. I am confused on how to complete the square on this proble      Log On


   

Question 1171922: Complete the square: x^2+2x+9.
Enter your answer in the form a(x+u)^2+v, where a, u, and v are replaced by numbers.
I am confused on how to complete the square on this problem.
Answer by ikleyn(52778) About Me  (Show Source):
You can put this solution on YOUR website!
.

    x^2 + 2x + 9 = grouping / regrouping = (x^2 + 2x + 1) + 8 = %28x%2B1%29%5E2 + 8.


    a = 1, u = 1, v = 8.

Solved, answered and explained.

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See the lesson
    - HOW TO complete the square - Learning by examples
in this site.

Learn the subject from there.