The Mathenæum Blog » Equations http://www.thewessens.net/blog Discussing mathematical explorations, games, and learning Fri, 03 Jul 2015 01:35:49 +0000 en-AU hourly 1 http://wordpress.org/?v=4.1.5 Cracking the quadratic code http://www.thewessens.net/blog/2015/06/22/cracking-the-quadratic-code/ http://www.thewessens.net/blog/2015/06/22/cracking-the-quadratic-code/#comments Sun, 21 Jun 2015 23:52:08 +0000 http://www.thewessens.net/blog/?p=603 In an earlier post, we looked at expanding binomial products. Remember how the result of the expansion is a mixture of the inputs — the numbers in the input do not appear in the result, but the numbers that …

]]> In an earlier post, we looked at expanding binomial products. Remember how the result of the expansion is a mixture of the inputs — the numbers in the input do not appear in the result, but the numbers that …

]]> http://www.thewessens.net/blog/2015/06/22/cracking-the-quadratic-code/feed/ 0 Solving Equations http://www.thewessens.net/blog/2015/03/14/solving-equations/ http://www.thewessens.net/blog/2015/03/14/solving-equations/#comments Sat, 14 Mar 2015 10:16:14 +0000 http://www.thewessens.net/blog/?p=166 A typical maths textbook presents equation solving in a very ordered, structured way. Starting with one-step equations such as 3x=6, they introduce the single step solution process

    \begin{eqnarray*} 3x & = & 6 \\ \color{red}{\scriptstyle \div 3} & & \color{red}{\scriptstyle\div 3} \\ x & = & 2 \end{eqnarray*}

before moving onto two-step equations such as 3x-3=12. For these equations …

]]> A typical maths textbook presents equation solving in a very ordered, structured way. Starting with one-step equations such as 3x=6, they introduce the single step solution process

    \begin{eqnarray*} 3x & = & 6 \\ \color{red}{\scriptstyle \div 3} & & \color{red}{\scriptstyle\div 3} \\ x & = & 2 \end{eqnarray*}

before moving onto two-step equations such as 3x-3=12. For these equations …

]]> http://www.thewessens.net/blog/2015/03/14/solving-equations/feed/ 0