“(a+b)2 – (a-b)2= 4ab Model” has been added to your cart. Continue shopping “Tangram Puzzle” has been added to your cart. Continue shopping Product Price Quantity Subtotal My Science Lab ₹3,000.00 My Science Lab quantity ₹3,000.00 (a+b)2 - (a-b)2= 4ab Model ₹300.00 (a+b)2 - (a-b)2= 4ab Model quantity ₹300.00 Tangram Puzzle ₹160.00 Tangram Puzzle quantity ₹160.00 Coupon: Cart Totals Subtotal ₹3,460.00 9% CGST ₹311.40 9% SGST ₹311.40 Total ₹4,083.00 Continue Shopping Checkout