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5/What should be added to 7x² + 3xy - y to get- x² + 2xy + y?​

Answer»

- 8x² - XY +2 yStep-by-step explanation:GIVEN addend= 7x² + 3xy - ysum = - x² + 2XY + yrequired addend = sum - given addend= - x² + 2xy + y -(7x² + 3xy - y)= - x² + 2xy + y -7x² - 3xy +y= - 8x² - xy +2 yrequired addend == - 8x² - xy +2 y



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