


Simple ExpansionsThe Distributive LawWe assume that you are familiar with the following exponential rules: x^{m}x^{n} = x^{m+n} ax^{m}bx^{n} = abx^{m+n} The method of expansion is based on the distributive law: In particular, when a = –1 Example 1A.Here we look at multiplying a number by a linear function. Click on the equal signs to see the expansion:
Example 1B.Multiplying a variable factor by a linear function is done in the same way. Click on the equal signs to see the next step of the expansion: Exercise 1.Now try a few yourself. Be careful of notation. Do not use spaces in your answer. Write terms in order of highest to lowest power of x. Expansion Index  Expanding a Pair of Brackets >>
