This chapter focuses on simplifying expressions. It covers adding together simple lists of letters and numbers including negatives in the list. And lastly multiplying and dividing simple algebraic expressions. Algebra is a very important...
This article explores cancelling algebraic fractions. It covers cancelling down algebraic fractions including brackets. Prior knowledge of factorisation and expanding will be useful in this article When working with fractions you can sometimes divide...
This section explores adding algebraic fractions. It covers adding algebraic fractions with a single term in the denominator, adding fractions with linear denominators, adding fractions with quadratic denominators which will be quite advanced for...
This chapter explores rules and formulae. It covers using letters to represent unknown numbers, substituting numbers into simple expressions and formulae and understanding basic fomulae. Fomulae contain letters which represent unknown values. The values...
This section exploles factorising linear expressions, it covers factorising by a common number: 4x+8y = 4(x+4y), factorising by a common letter, 4x+x² = x(4+x), factorising by a common number and letter 2x+4x² = 2x(1+2x)....
This chapter explores substitution in formulae or formulas. The chapter first looks at subsitition in simple equations or formulae then follows on to much harder expressions or formulae. Overall it is a very simple...
In this chapter we’re going to be exploring simultaneous equations. Mr Andrews runs a coffee shop that only sells cups of coffee and cups of tea. A man one day walks into his shop...
This article explores factorising quadratic equations/expressions. We shall explore factorising quadratics with x² coefficient and then factorising the difference between two squares. This article explains basic examples of factorising quadratics. This article contains harder...
In this chapter we’re going to explore completing the square. You will understand how to the square, and also be able to use complete the square to solve quadratic equations. Example The following is...
