As a graph cuts the axis when the y coordinate is zero, then we substitute \(y = 0\) into the quadratic equation and use algebra to solve. We need to factorise the trinomial. When factorised this ...
Using the quadratic formula is another method of solving quadratic equations that will not factorise. You will need to learn this formula, as well as understanding how to use it. Key fact The ...
Algebra holds 20 marks, covering Polynomials, Linear Equations, Quadratic Equations, and Arithmetic Progressions. Students should practice NCERT questions, solve sample papers, and follow expert tips.