Completing the square

Completing the square

Express \(y={{x}^{2}}+2x-4\) in the form of \(y={{(x-h)}^{2}}+k\).

Solution:

Solution locked

680+ questions here come with free worked solutions. A free account saves your questions and progress; this one needs a course plan.

Answer:\(y=(x+1)^2-5\), with \(h=-1,\ k=-5\).

Need help? Join our A-Maths tuition classes.

Learn more