DanielLee2026 DanielLee2026

09-01-2022
Mathematics

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From 7x^2+5xy-3y^2 subtract the sum of 2x^2+3xy-5y^2 and x^2-7xy-4y^2.

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fieryanswererft fieryanswererft

09-01-2022

Answer:

4x^2+9xy+6y^2

Step-by-step explanation:

7x^2+5xy-3y^2 -(2x^2+3xy-5y^2+x^2-7xy-4y^2)

7x^2+5xy-3y^2-(3x^2-4xy-9y^2)

7x^2+5xy-3y^2-3x^2+4xy+9y^2

4x^2+9xy+6y^2

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