Simultaneous equations Simultaneous examples with no common coefficients Forming and solving simultaneous equations Linear and quadratic equations - Higher Solving simultaneous equations ...

Look at the National 4 factorising section before continuing. When a question asks you to 'solve' a quadratic equation, this means that you are to find the roots of the quadratic. In other words ...

a parabola is a graphic depiction of a quadratic function. In the equation above, a, b and c are constants, and a is not equal to zero. (If a were zero, you would have a linear equation.) ...