.Subtract the sum of 3x²+5xy+7y²+3 and 2x²-4xy-3y²+7 from 9x²-8xy+11y².
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Answered by
5
Answer:
answer is 3x² - 10xy - 10y² - 9
Step-by-step explanation:
sum of 4x² + 7xy + 3y² + 1 and 2x² - 5xy - 2y² + 8
4x² + 7xy + 3y² + 1 + 2x² - 5xy - 2y² + 8
6x² + 2xy + y² + 9
subtract of 6x² + 2xy + y² + 9 from 9x² - 8xy + 11y²
9x² - 8xy + 11y² - (6x² + 2xy + y² + 9)
9x² - 8xy + 11y² - 6x² - 2xy - y² - 9
3x² - 10xy - 10y² - 9
Answered by
2
= 4x² + 7xy + 3y² + 1 + 2x² - 5xy - 2y² + 8
= 6x² + 2xy + y² + 9
= 9x² - 8xy + 11y² - ( 6x² + 2xy + y² + 9 )
= 9x² - 8xy + 11y² - 6x² - 2xy - y² + 9
= 3x² - 10xy - 10y² - 9
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