# Algebra

## Solving Equations for GCSE Maths

Solving equations means finding the value of the number represented by a letter in an equation, so your final answer will look something like: x = 4. The method we use is often called the balance method. Simply imagine the equation as a set of old fashioned scales, with the equals sign as the pivot. We …

## Algebra – Expanding Brackets

Expanding brackets is one of the fundamentals of algebra for GCSE Maths. There are two methods to learn. The first is expanding a single bracket and the second is expanding double brackets. Both methods are quite straightforward after a bit of practice. Take your time, read this guide carefully and then practice the questions at …

## The Quadratic Formula for GCSE Maths

In this guide we’ll show you everything you need to know about the quadratic formula for GCSE maths. The quadratic formula provides a way of solving quadratic equations. We’ve previously seen how to solve quadratic equations by factorising, but this method won’t always work for every equation. For any quadratic equations where factorising won’t work, …

## GCSE Algebra Revision

Why is Algebra so important? Algebra is perhaps the most important area for GCSE maths. Algebra encompasses a lot of topics and methods. It is essentially the parts of the maths course where you use letters and symbols to represent numbers. The methods you learn with algebra will also apply to many other parts of …

## Simultaneous Equations Practice Questions – GCSE Maths

Try these simultaneous equations practice questions to make sure you’re ready for your GCSE maths exams. These questions get steadily more difficult and include both the elimination and substitution methods. Check out our simultaneous equations revision guide if you need to revise the methods before trying these questions. You can also contact us directly to …

## Simultaneous Equations – GCSE Maths Revision Guide

Simultaneous equations are a key part of algebra for GCSE maths. To do well with simultaneous equations you need to be confident solving difficult linear equations. Check out our linear equations guide and worksheet if you need to revise this before going any further. Once you’re confident with linear equations read on and find out …

## Factorising Quadratic Equations – Solving by Factorising

This guide will tell you everything you need to know about factorising quadratic equations. Firstly, it’s important to recognise a quadratic equation. All quadratic equations can be written in the form:  Where a, b and c are numbers. Number ‘a’ cannot be equal to 0, but ‘b’ and ‘c’ could be 0.  There are several methods to solve …

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