A quadratic equation is an equation in which the highest power of the variable is 2. You will come across quadratic equations in algebra, graphs, measurements, word problems, and secondary school mathematics. The good news is that most quadratic equations can be solved using a few clear methods. The main ones are factorisation, the quadratic…

Simultaneous equations are two or more equations that contain the same unknown variables and must be solved together. They may look confusing when you first see them, but the basic idea is simple. You are looking for the values of the unknowns that make both equations true at the same time. For example: x +…