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PtichkaEL [24]
3 years ago
14

What must be added to2x² - 3 xy + 5yz to get x² - xy + y²​

Mathematics
1 answer:
Artyom0805 [142]3 years ago
4 0

Answer:

  • -x² + y² + 2xy - 5yz

Step-by-step explanation:

"A" must be added to  first expression to get the second one:

  • A + 2x² - 3 xy + 5yz =  x² - xy + y²​
  • A = ?

------------------------

  • A = x² - xy + y²​ - (2x² - 3 xy + 5yz) =
  • x² - xy + y²​ - 2x² + 3 xy - 5yz=
  • -x² + y² + 2xy - 5yz
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