Solving Quadratic Equations ( Factorization 2 )

A Method For Simple Cases

Luckily there is a method that works in simple cases.
For an equation

Step 1: Find two numbers that add to give b, and multiply to give ac

Solving Quadratic Equations ( Factorization 1 )

To "Factor" (or "Factorise" in the UK) a Quadratic is to:

find what to multiply to get the Quadratic 

It is called "Factoring" because you find the factors (a factor is something you multiply by)

Solving Quadratic Equations ( Quadratic Formula )

The most reliable method in solving quadratic equations is of course the quadratic formula.
It works for all equations, but care must be taken to ensure that the solutions do exist(for the case of real numbers).

Given an equation

we can find the solutions by using the formula

Solving Quadratic Equations

When we say solve a quadratic equation, we want to find the value of x such that when substituted into the equation


the equation is satisfied.

Introduction to Quadratic Equations

A quadratic equation is an equation that involves only two things besides numbers: a variable and a square of this variable.

Linear Equations (Revision)

For the PMR syllabus, students encountered equations of the form

ax + b = 0

where a,b are constants and x is a variable