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(11x^2+5y^2-8xy)+(x^2-7y^2+4x)
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(11x^2+5y^2-8xy)+(x^2-7y^2+4x)

User Nate Symer
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1 Answer

6 votes

Answer:

4x2 - 3xy - 9y2

Explanation:

User Roger Sobrado
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