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Class 9

(a + b)2 - (a - b)2 = 4ab
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(a+b)²-(a-b)²= 4ab

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(a+b)3 or Cubic Identity
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(a+b)³ or Cubic Identity

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(a + b + c)2
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(a+b+C)2

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3 Dimensional Interactive Periodic Table

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Algebra Kit set of 10
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Algebra Kit

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Algebra Tiles Magnetic
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Algebra Tiles Magetic

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Angle Sum Property of Cyclic Quadrilateral GM 432
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Angle property of Cyclic Quadrilateral

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Angle Sum Property of Quadrilateral GM 435
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Angle sum Property of Quadrlilateral

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Angle Sum Property of Triangle GM 433
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Angle sum Property of triangle

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Area of a Circle GM 446
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Area of Circle – Same as derivation of pie

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Balloon car

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Chemical Thermometer MM 2009
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Chemical Thermometer

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