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Please give simple answer forx²+y²+2xy-z² |
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Answer» + 2xy - z² REWRITE x² + y² + 2xy - z² as ( X + y )² - z² . the DIFFERENCE of squares can be factored USING the rule a²- b² = ( a - b ) ( a + b ) ( x + y - z ) ( x + y + z ) |
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