(A+B)2-(A-B)2=4ab,Mathematical Laboratory Educational Equipment, Educational Equipments, manufacture exporters, Pattern Block, Educational Maths Lab instruments, Mathematics Laboratory Equipment,Educational Equipments, manufacture exporters, School equipments, Supplier Exporter, educational equipments, india


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(A+B)2-(A-B)2=4ab – Mathematical Laboratory Educational Equipment

This identity is provided with magnet at back to demonstrate on magnetic board.


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