What use is a quadratic equation? A quadratic equation is an equation where at least one term is squared. It looks something like this: ax² + bx + c or c = ax² + bx .. and students are asked to solve, factorise or draw it.  Quadratics are usually the most dreaded of homework assignments. I'm sure many students have wondered about their use. Will they ever be useful - or is a … [Read more...]