REET 2021 Level 2 Math and Science Paper

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Question : 93 of 150

Marks: +1, -0

By subtracting -5x² + 7y² - 4xy from 3xy + 2y² - 2x² we get the expression

7xy - 5y² + 3x²
-7xy + 7y2 - 3x2
7xy + 7y2 + 3x2
xy - 9y² - 7x²

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