## WikiSandbox
Feel free to use this page to experiment with the Text Formatting Rules. Just click the "Edit Page" link at the bottom of the page. New info Expand the following: {$$ \begin{align} (x+1)^2 &\cssId{Step1}{= (x+1)(x+1)}\\ &\cssId{Step2}{= x(x+1) + 1(x+1)}\\ &\cssId{Step3}{= (x^2+x) + (x+1)}\\ &\cssId{Step4}{= x^2 + (x + x) + 1}\\ &\cssId{Step5}{= x^2+2x+1}\\ \end{align} $$} And some inline maths {$(x+1)^2 = (x+1)(x+1) = x(x+1) + 1(x+1) = (x^2+x) + (x+1) = x^2 + (x + x) + 1 = x^2+2x+1 $} |