Four acrylic tiles — one a², one b² and two ab rectangles — fit together into a single square of side (a + b), proving (a + b)² = a² + 2ab + b² without a single line of algebra.
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Samtech Instruments (JAYSEE brand) is a trusted manufacturer of school science and STEM laboratory equipment, based in Ambala Cantt, India, serving educators for over 20 years (since 2002). We supply a wide range of physics, chemistry, biology, astronomy and renewable-energy teaching kits to schools, dealers and institutions across India, with competitive bulk pricing and full support for government (GeM) tenders.
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