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Mathematics

Simplify:

xy{xy(x+y)xy}x - y - {x - y - (x + y) - \overline{x - y}}

Algebraic Expressions

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Answer

xy{xy(x+y)xy}x - y - {x - y - (x + y) - \overline{x - y}}

= xy{xy(x+y)x+y}x - y - {x - y - (x + y) - x + y}

= xy{xy(x+y)x+y}x - y - {\cancel{x} - \cancel{y} - (x + y) - \cancel{x} + \cancel{y}}

= xy{(x+y)}x - y - {-(x + y)}

= xy{xy}x - y - {- x - y}

= xy+x+yx - \cancel{y} + x + \cancel{y}

= 2x2x

Hence, xy{xy(x+y)xy}=2xx - y - {x - y - (x + y) - \overline{x - y}} = 2x

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