please solve it in notebook
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Step-by-step explanation:
We have to so 1st add then the ans subtract from given no.
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Answer:
10x² + 2y² - 5xy is the answer
Step-by-step explanation:
x² + 4xy + 3y² + (-3x² - 2xy + y²)
x² + 4xy + 3y² -3x² - 2xy + y²
= -2x² + 2xy + 4y²
now subtract -2x² + 2xy + 4y² from 8x² - 3xy + 6y²
8x² - 3xy + 6y² - (-2x² + 2xy + 4y² )
8x² - 3xy + 6y² + 2x² - 2xy - 4y²
10x² + 2y² - 5xy
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