1.

Geometrical proof of a^2-b^2,And geometrical proof of (a+b)^3.

Answer»

{a}^{2} - {b}^{2} = (a + b)(a - b)

{(a + b)}^{3} = {a}^{3} + {b}^{3} + 3 {a}^{2} b + 3a {b}^{2}


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