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Prove this polynomial identity
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Prove this polynomial identity

Prove this polynomial identity-example-1
User Senaps
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Answer:


{(x - y)}^(2) = (x - y)(x - y) \\ = ( {x}^(2) - xy - xy + {y}^(2) ) \\ = ( {x}^(2) - 2xy + {y}^(2) )

User Flore
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