Difference of Squares: Solving Equations, a Graphical Representation Part 1 (#102)
Difference of Squares: Solving Equations, a Graphical Representation Part 2 (#103)
Difference of Squares: Solving Equations, a Graphical Representation Part 3 (#104)
Students for Sensible Drug Policy
www.ssdp.org
Additional Design & Illustration by Per Wessmark
www.wessmark.com
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