BBC

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 ...
Interesting Engineering

Quadratic Formula: What, Why, and How It Changed Mathematics

Almost every student comes across the quadratic formula in mathematics, and it is a popular means to figure out the roots of a quadratic equation. In real life, the quadratic formula helps us in ...
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 ...