croydonmax croydonmax

26-01-2020
Mathematics

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What should be subtracted from 3x^2-4y^2+5xy+20 to obtain x^2+y^2+6xy+20?

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profarouk profarouk

26-01-2020

Answer:

2x² − 5y² − xy

Step-by-step explanation:

3x²- 4y² + 5xy + 20

−

x² + y² + 6xy + 20

________________

2x² − 5y² − xy + 0

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