show that each equation is true show solution why answer is that
1. (x+y)(x-y)= x square 2 - y square 2
2 (x+y)square 2 = x square 2 + 2xy + y square 2
3. (x-y) square 2 = x square 2 - 2xy +y square 2
1. (x+y)(x-y)= x square 2 - y square 2
2 (x+y)square 2 = x square 2 + 2xy + y square 2
3. (x-y) square 2 = x square 2 - 2xy +y square 2
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