croydonmax
croydonmax croydonmax
  • 26-01-2020
  • Mathematics
contestada

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

Respuesta :

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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