Notes
Investigation tab doo not work; can only be accessed by pressing next button in objectives section.
Release date
2004
Alt titles
Algebraic Expansion 2: Expansion of the form (a ± b) (a ± b) using the Distributive Law
Source
http://www.moe.gov.sg:80/edsoftware/ir/files/soc-economic-reasons-for-merger.zip (via Wayback Machine)

