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Byju's Answer
Standard VII
Mathematics
Subtraction of Algebraic Expression
How much is x...
Question
How much is x
2
− 2xy + 3y
2
less than 2x
2
− 3y
2
+ xy?
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Solution
Required expression = (2x
2
- 3y
2
+ xy) - (x
2
- 2xy + 3y
2
)
= 2x
2
- 3y
2
+ xy - x
2
+ 2xy - 3y
2
Collecting positive and negative like terms together, we get
2x
2
- x
2
- 3y
2
- 3y
2
+ xy + 2xy
= x
2
- 6y
2
+ 3xy
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