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If you want to get better at completing the square, do these!

In this video I work through 12 examples of solving quadratic equations using the square root method and completing the ...
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Solving by completing the square - Higher

An alternative method to solve a quadratic equation is to complete the square. To solve an equation of the form \(x^2 + bx + c = 0\) consider the expression \(\left(x ...
BBC

Solving by completing the square - Higher

Some quadratics cannot be factorised. An alternative method to solve a quadratic equation is to complete the square. To solve an equation of the form \(x^2 + bx + c = 0\) consider the expression ...