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0 votes
6.5k views
in Algebraic Expressions by (65.2k points)

What should be added to x2 + xy + y2 to obtain 2x2 + 3xy ?

1 Answer

+1 vote
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Best answer

= 2x2 + 3xy – (x2 + xy + y2)

= 2x2 + 3xy – x2 – xy – y2 – 2x2 – x2 + 3xy – xy – y2
(re-arranging the terms)

∴ x2 + 2xy – y2 should be added to x2 + xy + y2 to get 2x2 + 3xy

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