You can solve like this as follows:įactorise the quadratic equation, as detailed in the Factorising section of this module. This isn’t always easy or even possible, but if you notice that the equation can be relatively easily factorised, this can be a quick method of solving it. For example, \(\sqrt Solving by factorisingĪnother way you can solve a quadratic equation is by factorising the equation using two sets of brackets. both a positive and a negative solution, if you are taking the square root of a positive number.one solution of \(0\), if you are taking the square root of \(0\) or.no real solution, if you are taking the square root of a negative number (as there is no real number that can be squared to make a positive number).
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In particular, the page covers the following (use the drop-down menu above to jump to a different section as required):Ī quadratic equation, or second degree equation, is an algebraic equation of the form: This page explains some techniques for solving quadratic equations.