Question

What should be taken away from 3x² + 2y² - 5xy – 25 to get - x² - y² + 2xy + 10​

Answer 1

Answer:

3x² + 2y² - 5xy – 25-q=-x²- y² + 2xy + 10

3x² + 2y² - 5xy – 25+x²+y²-2xy-10=q

4x²+3y²-7xy-35=q

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Answer 2

answer:-

$4x {}^{2} + 3y {}^{2} - 7xy - 35$